From a9956831c45e8b903394ae001b2efbe96400bb02 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Sat, 4 Apr 2026 13:33:11 -0400
Subject: [PATCH 1/9] refactor(shortcuts): switch shortcut bindings to
 event.code

---
 inject.js  | 270 ++++++++++++++++++-------------------
 options.js | 385 ++++++++++++++++++++++++-----------------------------
 2 files changed, 298 insertions(+), 357 deletions(-)

diff --git a/inject.js b/inject.js
index 5139c1f..1c30691 100644
--- a/inject.js
+++ b/inject.js
@@ -15,7 +15,6 @@ var tc = {
     lastSpeed: 1.0,
     enabled: true,
     speeds: {},
-    displayKeyCode: 86,
     rememberSpeed: false,
     forceLastSavedSpeed: false,
     audioBoolean: false,
@@ -130,60 +129,10 @@ var controllerButtonDefs = {
   jump:     { label: "", className: "" }
 };
 
-var keyCodeToEventKey = {
-  32: " ",
-  37: "ArrowLeft",
-  38: "ArrowUp",
-  39: "ArrowRight",
-  40: "ArrowDown",
-  96: "0",
-  97: "1",
-  98: "2",
-  99: "3",
-  100: "4",
-  101: "5",
-  102: "6",
-  103: "7",
-  104: "8",
-  105: "9",
-  106: "*",
-  107: "+",
-  109: "-",
-  110: ".",
-  111: "/",
-  112: "F1",
-  113: "F2",
-  114: "F3",
-  115: "F4",
-  116: "F5",
-  117: "F6",
-  118: "F7",
-  119: "F8",
-  120: "F9",
-  121: "F10",
-  122: "F11",
-  123: "F12",
-  186: ";",
-  188: "<",
-  189: "-",
-  187: "+",
-  190: ">",
-  191: "/",
-  192: "~",
-  219: "[",
-  220: "\\",
-  221: "]",
-  222: "'",
-  59: ";",
-  61: "+",
-  173: "-"
-};
-
-function createDefaultBinding(action, key, keyCode, value) {
+function createDefaultBinding(action, code, value) {
   return {
     action: action,
-    key: key,
-    keyCode: keyCode,
+    code: code,
     value: value,
     force: false,
     predefined: true
@@ -194,62 +143,54 @@ function defaultKeyBindings(storage) {
   return [
     createDefaultBinding(
       "slower",
-      "S",
-      Number(storage.slowerKeyCode) || 83,
+      "KeyS",
       Number(storage.speedStep) || 0.1
     ),
     createDefaultBinding(
       "faster",
-      "D",
-      Number(storage.fasterKeyCode) || 68,
+      "KeyD",
       Number(storage.speedStep) || 0.1
     ),
     createDefaultBinding(
       "rewind",
-      "Z",
-      Number(storage.rewindKeyCode) || 90,
+      "KeyZ",
       Number(storage.rewindTime) || 10
     ),
     createDefaultBinding(
       "advance",
-      "X",
-      Number(storage.advanceKeyCode) || 88,
+      "KeyX",
       Number(storage.advanceTime) || 10
     ),
     createDefaultBinding(
       "reset",
-      "R",
-      Number(storage.resetKeyCode) || 82,
+      "KeyR",
       1.0
     ),
     createDefaultBinding(
       "fast",
-      "G",
-      Number(storage.fastKeyCode) || 71,
+      "KeyG",
       Number(storage.fastSpeed) || 1.8
     ),
     createDefaultBinding(
       "move",
-      "P",
-      80,
+      "KeyP",
       0
     ),
     createDefaultBinding(
       "toggleSubtitleNudge",
-      "N",
-      78,
+      "KeyN",
       0
     )
   ];
 }
 
-function ensureDefaultKeyBinding(action, key, keyCode, value) {
+function ensureDefaultKeyBinding(action, code, value) {
   if (tc.settings.keyBindings.some((binding) => binding.action === action)) {
     return false;
   }
 
   tc.settings.keyBindings.push(
-    createDefaultBinding(action, key, keyCode, value)
+    createDefaultBinding(action, code, value)
   );
   return true;
 }
@@ -544,37 +485,113 @@ function normalizeBindingKey(key) {
   return key;
 }
 
-function legacyKeyCodeToBinding(keyCode) {
-  if (!Number.isInteger(keyCode)) return null;
-  var key = keyCodeToEventKey[keyCode];
-  if (!key && keyCode >= 48 && keyCode <= 57) {
-    key = String.fromCharCode(keyCode);
-  }
-  if (!key && keyCode >= 65 && keyCode <= 90) {
-    key = String.fromCharCode(keyCode);
-  }
-  return {
-    key: normalizeBindingKey(key),
-    keyCode: keyCode,
-    code: null,
-    disabled: false
+function legacyBindingKeyToCode(key) {
+  var normalizedKey = normalizeBindingKey(key);
+  if (!normalizedKey) return null;
+  if (/^[A-Z]$/.test(normalizedKey)) return "Key" + normalizedKey;
+  if (/^[0-9]$/.test(normalizedKey)) return "Digit" + normalizedKey;
+  if (/^F([1-9]|1[0-2])$/.test(normalizedKey)) return normalizedKey;
+
+  var keyMap = {
+    " ": "Space",
+    ArrowLeft: "ArrowLeft",
+    ArrowUp: "ArrowUp",
+    ArrowRight: "ArrowRight",
+    ArrowDown: "ArrowDown",
+    ";": "Semicolon",
+    "<": "Comma",
+    "-": "Minus",
+    "+": "Equal",
+    ">": "Period",
+    "/": "Slash",
+    "~": "Backquote",
+    "[": "BracketLeft",
+    "\\": "Backslash",
+    "]": "BracketRight",
+    "'": "Quote"
   };
+
+  return keyMap[normalizedKey] || null;
 }
 
-function normalizeStoredBinding(binding, fallbackKeyCode) {
-  var fallbackBinding = legacyKeyCodeToBinding(fallbackKeyCode);
-  if (!binding) return fallbackBinding;
+function legacyKeyCodeToCode(keyCode) {
+  if (!Number.isInteger(keyCode)) return null;
+  if (keyCode >= 48 && keyCode <= 57) return "Digit" + String.fromCharCode(keyCode);
+  if (keyCode >= 65 && keyCode <= 90) return "Key" + String.fromCharCode(keyCode);
+  if (keyCode >= 96 && keyCode <= 105) return "Numpad" + (keyCode - 96);
+  if (keyCode >= 112 && keyCode <= 123) return "F" + (keyCode - 111);
+
+  var keyCodeMap = {
+    32: "Space",
+    37: "ArrowLeft",
+    38: "ArrowUp",
+    39: "ArrowRight",
+    40: "ArrowDown",
+    106: "NumpadMultiply",
+    107: "NumpadAdd",
+    109: "NumpadSubtract",
+    110: "NumpadDecimal",
+    111: "NumpadDivide",
+    186: "Semicolon",
+    188: "Comma",
+    189: "Minus",
+    187: "Equal",
+    190: "Period",
+    191: "Slash",
+    192: "Backquote",
+    219: "BracketLeft",
+    220: "Backslash",
+    221: "BracketRight",
+    222: "Quote",
+    59: "Semicolon",
+    61: "Equal",
+    173: "Minus"
+  };
+
+  return keyCodeMap[keyCode] || null;
+}
+
+function inferBindingCode(binding, fallbackCode) {
+  if (binding && typeof binding.code === "string" && binding.code.length > 0) {
+    return binding.code;
+  }
+
+  if (binding && typeof binding.key === "string") {
+    var codeFromKey = legacyBindingKeyToCode(binding.key);
+    if (codeFromKey) return codeFromKey;
+  }
+
+  var legacyKeyCode = getLegacyKeyCode(binding);
+  if (Number.isInteger(legacyKeyCode)) {
+    var codeFromKeyCode = legacyKeyCodeToCode(legacyKeyCode);
+    if (codeFromKeyCode) return codeFromKeyCode;
+  }
+
+  return typeof fallbackCode === "string" && fallbackCode.length > 0
+    ? fallbackCode
+    : null;
+}
+
+function normalizeStoredBinding(binding, fallbackCode) {
+  if (!binding) {
+    if (!fallbackCode) return null;
+    return {
+      code: fallbackCode,
+      disabled: false,
+      value: 0,
+      force: "false",
+      predefined: false
+    };
+  }
 
   if (
     binding.disabled === true ||
-    (binding.key === null &&
-      binding.keyCode === null &&
-      binding.code === null)
+    (binding.code === null &&
+      binding.key === null &&
+      binding.keyCode === null)
   ) {
     return {
       action: binding.action,
-      key: null,
-      keyCode: null,
       code: null,
       disabled: true,
       value: Number(binding.value),
@@ -583,46 +600,20 @@ function normalizeStoredBinding(binding, fallbackKeyCode) {
     };
   }
 
+  var normalizedCode = inferBindingCode(binding, fallbackCode);
+  if (!normalizedCode) {
+    return null;
+  }
+
   var normalized = {
     action: binding.action,
-    key: null,
-    keyCode: null,
-    code:
-      typeof binding.code === "string" && binding.code.length > 0
-        ? binding.code
-        : null,
+    code: normalizedCode,
     disabled: false,
     value: Number(binding.value),
     force: String(binding.force) === "true" ? "true" : "false",
     predefined: Boolean(binding.predefined)
   };
 
-  if (typeof binding.key === "string") {
-    normalized.key = normalizeBindingKey(binding.key);
-  }
-
-  var legacyKeyCode = getLegacyKeyCode(binding);
-  if (Number.isInteger(legacyKeyCode)) {
-    var legacyBinding = legacyKeyCodeToBinding(legacyKeyCode);
-    if (legacyBinding) {
-      normalized.key = normalized.key || legacyBinding.key;
-      normalized.keyCode = legacyKeyCode;
-    }
-  }
-
-  if (Number.isInteger(binding.keyCode)) {
-    normalized.keyCode = binding.keyCode;
-  }
-
-  if (!normalized.key && fallbackBinding) {
-    normalized.key = fallbackBinding.key;
-    if (normalized.keyCode === null) normalized.keyCode = fallbackBinding.keyCode;
-  }
-
-  if (!normalized.key && !normalized.code && normalized.keyCode === null) {
-    return null;
-  }
-
   return normalized;
 }
 
@@ -979,19 +970,13 @@ function takePendingRateChange(video, currentSpeed) {
 }
 
 function matchesKeyBinding(binding, event) {
-  if (!binding || binding.disabled) return false;
-
-  var normalizedEventKey = normalizeBindingKey(event.key);
-  if (binding.key && normalizedEventKey) {
-    return binding.key === normalizedEventKey;
-  }
-
-  if (binding.code && event.code) {
-    return binding.code === event.code;
-  }
-
-  var legacyKeyCode = getLegacyKeyCode(binding);
-  return Number.isInteger(legacyKeyCode) && legacyKeyCode === event.keyCode;
+  return Boolean(
+    binding &&
+    binding.disabled !== true &&
+    typeof binding.code === "string" &&
+    binding.code.length > 0 &&
+    binding.code === event.code
+  );
 }
 
 function mediaSelector() {
@@ -1206,7 +1191,6 @@ chrome.storage.sync.get(tc.settings, function (storage) {
     chrome.storage.sync.set({
       keyBindings: tc.settings.keyBindings,
       version: tc.settings.version,
-      displayKeyCode: tc.settings.displayKeyCode,
       rememberSpeed: tc.settings.rememberSpeed,
       forceLastSavedSpeed: tc.settings.forceLastSavedSpeed,
       audioBoolean: tc.settings.audioBoolean,
@@ -1226,7 +1210,6 @@ chrome.storage.sync.get(tc.settings, function (storage) {
     tc.settings.lastSpeed = 1.0;
   }
   tc.persistedLastSpeed = tc.settings.lastSpeed;
-  tc.settings.displayKeyCode = Number(storage.displayKeyCode);
   tc.settings.rememberSpeed = Boolean(storage.rememberSpeed);
   tc.settings.forceLastSavedSpeed = Boolean(storage.forceLastSavedSpeed);
   tc.settings.audioBoolean = Boolean(storage.audioBoolean);
@@ -1281,14 +1264,13 @@ chrome.storage.sync.get(tc.settings, function (storage) {
   addedDefaultBinding =
     ensureDefaultKeyBinding(
       "display",
-      "V",
-      Number(storage.displayKeyCode) || 86,
+      "KeyV",
       0
     ) || addedDefaultBinding;
   addedDefaultBinding =
-    ensureDefaultKeyBinding("move", "P", 80, 0) || addedDefaultBinding;
+    ensureDefaultKeyBinding("move", "KeyP", 0) || addedDefaultBinding;
   addedDefaultBinding =
-    ensureDefaultKeyBinding("toggleSubtitleNudge", "N", 78, 0) ||
+    ensureDefaultKeyBinding("toggleSubtitleNudge", "KeyN", 0) ||
     addedDefaultBinding;
 
   if (addedDefaultBinding) {
diff --git a/options.js b/options.js
index 37b0eba..7851653 100644
--- a/options.js
+++ b/options.js
@@ -2,105 +2,38 @@ var regStrip = /^[\r\t\f\v ]+|[\r\t\f\v ]+$/gm;
 
 var keyBindings = [];
 
-var keyCodeAliases = {
-  0: "null",
-  null: "null",
-  undefined: "null",
-  32: "Space",
-  37: "Left",
-  38: "Up",
-  39: "Right",
-  40: "Down",
-  96: "Num 0",
-  97: "Num 1",
-  98: "Num 2",
-  99: "Num 3",
-  100: "Num 4",
-  101: "Num 5",
-  102: "Num 6",
-  103: "Num 7",
-  104: "Num 8",
-  105: "Num 9",
-  106: "Num *",
-  107: "Num +",
-  109: "Num -",
-  110: "Num .",
-  111: "Num /",
-  112: "F1",
-  113: "F2",
-  114: "F3",
-  115: "F4",
-  116: "F5",
-  117: "F6",
-  118: "F7",
-  119: "F8",
-  120: "F9",
-  121: "F10",
-  122: "F11",
-  123: "F12",
-  186: ";",
-  188: "<",
-  189: "-",
-  187: "+",
-  190: ">",
-  191: "/",
-  192: "~",
-  219: "[",
-  220: "\\",
-  221: "]",
-  222: "'",
-  59: ";",
-  61: "+",
-  173: "-"
-};
-
-var keyCodeToKey = {
-  32: " ",
-  37: "ArrowLeft",
-  38: "ArrowUp",
-  39: "ArrowRight",
-  40: "ArrowDown",
-  96: "0",
-  97: "1",
-  98: "2",
-  99: "3",
-  100: "4",
-  101: "5",
-  102: "6",
-  103: "7",
-  104: "8",
-  105: "9",
-  106: "*",
-  107: "+",
-  109: "-",
-  110: ".",
-  111: "/",
-  112: "F1",
-  113: "F2",
-  114: "F3",
-  115: "F4",
-  116: "F5",
-  117: "F6",
-  118: "F7",
-  119: "F8",
-  120: "F9",
-  121: "F10",
-  122: "F11",
-  123: "F12",
-  186: ";",
-  188: "<",
-  189: "-",
-  187: "+",
-  190: ">",
-  191: "/",
-  192: "~",
-  219: "[",
-  220: "\\",
-  221: "]",
-  222: "'",
-  59: ";",
-  61: "+",
-  173: "-"
+var bindingCodeAliases = {
+  Space: "Space",
+  ArrowLeft: "Left",
+  ArrowUp: "Up",
+  ArrowRight: "Right",
+  ArrowDown: "Down",
+  Numpad0: "Num 0",
+  Numpad1: "Num 1",
+  Numpad2: "Num 2",
+  Numpad3: "Num 3",
+  Numpad4: "Num 4",
+  Numpad5: "Num 5",
+  Numpad6: "Num 6",
+  Numpad7: "Num 7",
+  Numpad8: "Num 8",
+  Numpad9: "Num 9",
+  NumpadMultiply: "Num *",
+  NumpadAdd: "Num +",
+  NumpadSubtract: "Num -",
+  NumpadDecimal: "Num .",
+  NumpadDivide: "Num /",
+  Backquote: "`",
+  Minus: "-",
+  Equal: "=",
+  BracketLeft: "[",
+  BracketRight: "]",
+  Backslash: "\\",
+  Semicolon: ";",
+  Quote: "'",
+  Comma: ",",
+  Period: ".",
+  Slash: "/"
 };
 
 var modifierKeys = new Set([
@@ -114,13 +47,6 @@ var modifierKeys = new Set([
   "Shift"
 ]);
 
-var displayKeyAliases = {
-  " ": "Space",
-  ArrowLeft: "Left",
-  ArrowUp: "Up",
-  ArrowRight: "Right",
-  ArrowDown: "Down"
-};
 var controllerLocations = [
   "top-left",
   "top-center",
@@ -221,11 +147,10 @@ function fillControlBarIconElement(icon, buttonId) {
   icon.textContent = (def && def.icon) || "?";
 }
 
-function createDefaultBinding(action, key, keyCode, value) {
+function createDefaultBinding(action, code, value) {
   return {
     action: action,
-    key: key,
-    keyCode: keyCode,
+    code: code,
     value: value,
     force: false,
     predefined: true
@@ -235,7 +160,6 @@ function createDefaultBinding(action, key, keyCode, value) {
 var tcDefaults = {
   speed: 1.0,
   lastSpeed: 1.0,
-  displayKeyCode: 86,
   rememberSpeed: false,
   audioBoolean: false,
   startHidden: false,
@@ -251,15 +175,15 @@ var tcDefaults = {
   controllerMarginBottom: 65,
   controllerMarginLeft: 0,
   keyBindings: [
-    createDefaultBinding("display", "V", 86, 0),
-    createDefaultBinding("move", "P", 80, 0),
-    createDefaultBinding("slower", "S", 83, 0.1),
-    createDefaultBinding("faster", "D", 68, 0.1),
-    createDefaultBinding("rewind", "Z", 90, 10),
-    createDefaultBinding("advance", "X", 88, 10),
-    createDefaultBinding("reset", "R", 82, 1),
-    createDefaultBinding("fast", "G", 71, 1.8),
-    createDefaultBinding("toggleSubtitleNudge", "N", 78, 0)
+    createDefaultBinding("display", "KeyV", 0),
+    createDefaultBinding("move", "KeyP", 0),
+    createDefaultBinding("slower", "KeyS", 0.1),
+    createDefaultBinding("faster", "KeyD", 0.1),
+    createDefaultBinding("rewind", "KeyZ", 10),
+    createDefaultBinding("advance", "KeyX", 10),
+    createDefaultBinding("reset", "KeyR", 1),
+    createDefaultBinding("fast", "KeyG", 1.8),
+    createDefaultBinding("toggleSubtitleNudge", "KeyN", 0)
   ],
   siteRules: [
     {
@@ -363,10 +287,10 @@ function refreshAddShortcutSelector() {
   }
 }
 
-function ensureDefaultBinding(storage, action, key, keyCode, value) {
+function ensureDefaultBinding(storage, action, code, value) {
   if (storage.keyBindings.some((item) => item.action === action)) return;
 
-  storage.keyBindings.push(createDefaultBinding(action, key, keyCode, value));
+  storage.keyBindings.push(createDefaultBinding(action, code, value));
 }
 
 function normalizeControllerLocation(location) {
@@ -413,112 +337,156 @@ function getLegacyKeyCode(binding) {
   return null;
 }
 
-function legacyKeyCodeToBinding(keyCode) {
-  if (!Number.isInteger(keyCode)) return null;
-  var normalizedKey = keyCodeToKey[keyCode];
-  if (!normalizedKey && keyCode >= 48 && keyCode <= 57) {
-    normalizedKey = String.fromCharCode(keyCode);
-  }
-  if (!normalizedKey && keyCode >= 65 && keyCode <= 90) {
-    normalizedKey = String.fromCharCode(keyCode);
-  }
-  return {
-    key: normalizeBindingKey(normalizedKey),
-    keyCode: keyCode,
-    code: null,
-    disabled: false
+function legacyBindingKeyToCode(key) {
+  var normalizedKey = normalizeBindingKey(key);
+  if (!normalizedKey) return null;
+  if (/^[A-Z]$/.test(normalizedKey)) return "Key" + normalizedKey;
+  if (/^[0-9]$/.test(normalizedKey)) return "Digit" + normalizedKey;
+  if (/^F([1-9]|1[0-2])$/.test(normalizedKey)) return normalizedKey;
+
+  var keyMap = {
+    " ": "Space",
+    ArrowLeft: "ArrowLeft",
+    ArrowUp: "ArrowUp",
+    ArrowRight: "ArrowRight",
+    ArrowDown: "ArrowDown",
+    ";": "Semicolon",
+    "<": "Comma",
+    "-": "Minus",
+    "+": "Equal",
+    ">": "Period",
+    "/": "Slash",
+    "~": "Backquote",
+    "[": "BracketLeft",
+    "\\": "Backslash",
+    "]": "BracketRight",
+    "'": "Quote"
   };
+
+  return keyMap[normalizedKey] || null;
+}
+
+function legacyKeyCodeToCode(keyCode) {
+  if (!Number.isInteger(keyCode)) return null;
+  if (keyCode >= 48 && keyCode <= 57) return "Digit" + String.fromCharCode(keyCode);
+  if (keyCode >= 65 && keyCode <= 90) return "Key" + String.fromCharCode(keyCode);
+  if (keyCode >= 96 && keyCode <= 105) return "Numpad" + (keyCode - 96);
+  if (keyCode >= 112 && keyCode <= 123) return "F" + (keyCode - 111);
+
+  var keyCodeMap = {
+    32: "Space",
+    37: "ArrowLeft",
+    38: "ArrowUp",
+    39: "ArrowRight",
+    40: "ArrowDown",
+    106: "NumpadMultiply",
+    107: "NumpadAdd",
+    109: "NumpadSubtract",
+    110: "NumpadDecimal",
+    111: "NumpadDivide",
+    186: "Semicolon",
+    188: "Comma",
+    189: "Minus",
+    187: "Equal",
+    190: "Period",
+    191: "Slash",
+    192: "Backquote",
+    219: "BracketLeft",
+    220: "Backslash",
+    221: "BracketRight",
+    222: "Quote",
+    59: "Semicolon",
+    61: "Equal",
+    173: "Minus"
+  };
+
+  return keyCodeMap[keyCode] || null;
+}
+
+function inferBindingCode(binding, fallbackCode) {
+  if (binding && typeof binding.code === "string" && binding.code.length > 0) {
+    return binding.code;
+  }
+
+  if (binding && typeof binding.key === "string") {
+    var codeFromKey = legacyBindingKeyToCode(binding.key);
+    if (codeFromKey) return codeFromKey;
+  }
+
+  var legacyKeyCode = getLegacyKeyCode(binding);
+  if (Number.isInteger(legacyKeyCode)) {
+    var codeFromKeyCode = legacyKeyCodeToCode(legacyKeyCode);
+    if (codeFromKeyCode) return codeFromKeyCode;
+  }
+
+  return typeof fallbackCode === "string" && fallbackCode.length > 0
+    ? fallbackCode
+    : null;
 }
 
 function createDisabledBinding() {
   return {
-    key: null,
-    keyCode: null,
     code: null,
     disabled: true
   };
 }
 
-function normalizeStoredBinding(binding, fallbackKeyCode) {
-  var fallbackBinding = legacyKeyCodeToBinding(fallbackKeyCode);
+function normalizeStoredBinding(binding, fallbackCode) {
   if (!binding) {
-    return fallbackBinding;
+    if (!fallbackCode) return null;
+    return {
+      code: fallbackCode,
+      disabled: false
+    };
   }
 
   if (
     binding.disabled === true ||
-    (binding.key === null &&
-      binding.keyCode === null &&
-      binding.code === null)
+    (binding.code === null &&
+      binding.key === null &&
+      binding.keyCode === null)
   ) {
     return createDisabledBinding();
   }
 
-  var normalized = {
-    key: null,
-    keyCode: null,
-    code:
-      typeof binding.code === "string" && binding.code.length > 0
-        ? binding.code
-        : null,
-    disabled: false
-  };
-
-  if (typeof binding.key === "string") {
-    normalized.key = normalizeBindingKey(binding.key);
-  }
-
-  var legacyKeyCode = getLegacyKeyCode(binding);
-  if (Number.isInteger(legacyKeyCode)) {
-    var legacyBinding = legacyKeyCodeToBinding(legacyKeyCode);
-    if (legacyBinding) {
-      normalized.key = normalized.key || legacyBinding.key;
-      normalized.keyCode = legacyKeyCode;
-    }
-  }
-
-  if (Number.isInteger(binding.keyCode)) {
-    normalized.keyCode = binding.keyCode;
-  }
-
-  if (!normalized.key && fallbackBinding) {
-    normalized.key = fallbackBinding.key;
-    if (normalized.keyCode === null) normalized.keyCode = fallbackBinding.keyCode;
-  }
-
-  if (!normalized.key && !normalized.code && normalized.keyCode === null) {
+  var normalizedCode = inferBindingCode(binding, fallbackCode);
+  if (!normalizedCode) {
     return null;
   }
 
+  var normalized = {
+    code: normalizedCode,
+    disabled: false
+  };
+
   return normalized;
 }
 
+function formatBindingCode(code) {
+  if (typeof code !== "string" || code.length === 0) return "";
+  if (bindingCodeAliases[code]) return bindingCodeAliases[code];
+  if (/^Key[A-Z]$/.test(code)) return code.substring(3);
+  if (/^Digit[0-9]$/.test(code)) return code.substring(5);
+  if (/^F([1-9]|1[0-2])$/.test(code)) return code;
+  return code;
+}
+
 function getBindingLabel(binding) {
   if (!binding) return "";
   if (binding.disabled) return "";
-  if (binding.key) {
-    return displayKeyAliases[binding.key] || binding.key;
-  }
-  var legacyKeyCode = getLegacyKeyCode(binding);
-  if (keyCodeAliases[legacyKeyCode]) return keyCodeAliases[legacyKeyCode];
-  if (Number.isInteger(legacyKeyCode)) return String.fromCharCode(legacyKeyCode);
-  return "";
+  return formatBindingCode(binding.code);
 }
 
 function setShortcutInputBinding(input, binding) {
   input.vscBinding = binding ? Object.assign({}, binding) : null;
-  input.keyCode =
-    binding && Number.isInteger(binding.keyCode) ? binding.keyCode : null;
   input.value = getBindingLabel(binding);
 }
 
 function captureBindingFromEvent(event) {
-  var normalizedKey = normalizeBindingKey(event.key);
-  if (!normalizedKey || modifierKeys.has(normalizedKey)) return null;
+  if (modifierKeys.has(event.key)) return null;
+  if (typeof event.code !== "string" || event.code.length === 0) return null;
   return {
-    key: normalizedKey,
-    keyCode: Number.isInteger(event.keyCode) ? event.keyCode : null,
-    code: event.code || null,
+    code: event.code,
     disabled: false
   };
 }
@@ -549,8 +517,10 @@ function recordKeyPress(event) {
 }
 
 function inputFilterNumbersOnly(event) {
-  var char = String.fromCharCode(event.keyCode);
+  var char = event.key;
   if (
+    typeof char !== "string" ||
+    char.length !== 1 ||
     !/[\d\.]$/.test(char) ||
     !/^\d+(\.\d*)?$/.test(event.target.value + char)
   ) {
@@ -577,7 +547,15 @@ function updateCustomShortcutInputText(inputItem, bindingOrKeyCode) {
     return;
   }
 
-  setShortcutInputBinding(inputItem, legacyKeyCodeToBinding(bindingOrKeyCode));
+  if (typeof bindingOrKeyCode === "string") {
+    setShortcutInputBinding(inputItem, { code: bindingOrKeyCode, disabled: false });
+    return;
+  }
+
+  setShortcutInputBinding(
+    inputItem,
+    normalizeStoredBinding({ keyCode: bindingOrKeyCode })
+  );
 }
 
 function appendSelectOptions(select, options) {
@@ -637,11 +615,7 @@ function createKeyBindings(item) {
   var input = item.querySelector(".customKey");
   var valueInput = item.querySelector(".customValue");
   var predefined = !!item.id;
-  var fallbackKeyCode =
-    predefined && action === "display"
-      ? tcDefaults.displayKeyCode
-      : undefined;
-  var binding = normalizeStoredBinding(input.vscBinding, fallbackKeyCode);
+  var binding = normalizeStoredBinding(input.vscBinding);
 
   if (!binding) {
     return {
@@ -652,8 +626,6 @@ function createKeyBindings(item) {
 
   keyBindings.push({
     action: action,
-    key: binding.key,
-    keyCode: binding.keyCode,
     code: binding.code,
     disabled: binding.disabled === true,
     value: customActionsNoValues.includes(action)
@@ -872,8 +844,6 @@ function save_options() {
         if (binding) {
           shortcuts.push({
             action: action,
-            key: binding.key,
-            keyCode: binding.keyCode,
             code: binding.code,
             disabled: binding.disabled === true,
             value: customActionsNoValues.includes(action)
@@ -908,18 +878,7 @@ function save_options() {
 
 function ensureAllDefaultBindings(storage) {
   tcDefaults.keyBindings.forEach((binding) => {
-    // Special case for "display" to support legacy displayKeyCode
-    if (binding.action === "display" && storage.displayKeyCode) {
-      ensureDefaultBinding(storage, "display", "V", storage.displayKeyCode, 0);
-    } else {
-      ensureDefaultBinding(
-        storage,
-        binding.action,
-        binding.key,
-        binding.keyCode,
-        binding.value
-      );
-    }
+    ensureDefaultBinding(storage, binding.action, binding.code, binding.value);
   });
 }
 

From 3cf1a4acd16915adb5aa398a941f16b7e99f954e Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Sat, 4 Apr 2026 16:14:56 -0400
Subject: [PATCH 2/9] style(inject): normalize formatting

---
 inject.js | 154 ++++++++++++++++++++++++++++++------------------------
 1 file changed, 85 insertions(+), 69 deletions(-)

diff --git a/inject.js b/inject.js
index 1c30691..8d90682 100644
--- a/inject.js
+++ b/inject.js
@@ -56,7 +56,7 @@ var vscObservedRoots = new WeakSet();
 var requestIdle =
   typeof window.requestIdleCallback === "function"
     ? window.requestIdleCallback.bind(window)
-    : function (callback, options) {
+    : function(callback, options) {
       return setTimeout(callback, (options && options.timeout) || 1);
     };
 var controllerLocations = [
@@ -115,18 +115,18 @@ var controllerLocationStyles = {
 
 /* `label` fallback only when ui-icons has no path for the action. */
 var controllerButtonDefs = {
-  rewind:   { label: "", className: "rw" },
-  slower:   { label: "", className: "" },
-  faster:   { label: "", className: "" },
-  advance:  { label: "", className: "rw" },
-  display:  { label: "", className: "hideButton" },
-  reset:    { label: "\u21BB", className: "" },
-  fast:     { label: "", className: "" },
+  rewind: { label: "", className: "rw" },
+  slower: { label: "", className: "" },
+  faster: { label: "", className: "" },
+  advance: { label: "", className: "rw" },
+  display: { label: "", className: "hideButton" },
+  reset: { label: "\u21BB", className: "" },
+  fast: { label: "", className: "" },
   settings: { label: "", className: "" },
-  pause:    { label: "", className: "" },
-  muted:    { label: "", className: "" },
-  mark:     { label: "", className: "" },
-  jump:     { label: "", className: "" }
+  pause: { label: "", className: "" },
+  muted: { label: "", className: "" },
+  mark: { label: "", className: "" },
+  jump: { label: "", className: "" }
 };
 
 function createDefaultBinding(action, code, value) {
@@ -388,7 +388,7 @@ function captureSiteRuleBase() {
       ? tc.settings.controllerButtons.slice()
       : tc.settings.controllerButtons,
     keyBindings: Array.isArray(tc.settings.keyBindings)
-      ? tc.settings.keyBindings.map(function (binding) {
+      ? tc.settings.keyBindings.map(function(binding) {
         return Object.assign({}, binding);
       })
       : tc.settings.keyBindings
@@ -414,7 +414,7 @@ function resetSettingsFromSiteRuleBase() {
     ? base.controllerButtons.slice()
     : base.controllerButtons;
   tc.settings.keyBindings = Array.isArray(base.keyBindings)
-    ? base.keyBindings.map(function (binding) {
+    ? base.keyBindings.map(function(binding) {
       return Object.assign({}, binding);
     })
     : base.keyBindings;
@@ -759,7 +759,7 @@ function setSubtitleNudgeEnabledForVideo(video, enabled) {
   if (flashEl) {
     flashEl.classList.add("visible");
     clearTimeout(flashEl._flashTimer);
-    flashEl._flashTimer = setTimeout(function () {
+    flashEl._flashTimer = setTimeout(function() {
       flashEl.classList.remove("visible");
     }, 1500);
   }
@@ -833,7 +833,7 @@ function schedulePersistLastSpeed(speed) {
   tc.pendingLastSpeedValue = speed;
   if (tc.pendingLastSpeedSave !== null) return;
 
-  tc.pendingLastSpeedSave = setTimeout(function () {
+  tc.pendingLastSpeedSave = setTimeout(function() {
     var speedToPersist = tc.pendingLastSpeedValue;
     tc.pendingLastSpeedSave = null;
 
@@ -841,7 +841,8 @@ function schedulePersistLastSpeed(speed) {
       return;
     }
 
-    chrome.storage.sync.set({ lastSpeed: speedToPersist }, function () { });
+    chrome.storage.sync.set({ lastSpeed: speedToPersist }, function() {
+    });
     tc.persistedLastSpeed = speedToPersist;
   }, 250);
 }
@@ -923,7 +924,7 @@ function scheduleSpeedRestore(video, desiredSpeed, reason) {
     clearTimeout(video.vsc.restoreSpeedTimer);
   }
 
-  video.vsc.restoreSpeedTimer = setTimeout(function () {
+  video.vsc.restoreSpeedTimer = setTimeout(function() {
     if (!video.vsc) return;
 
     if (Math.abs(video.playbackRate - desiredSpeed) > 0.01) {
@@ -1006,7 +1007,7 @@ function hasUsableMediaSource(node) {
   }
 
   if (node.querySelectorAll) {
-    return Array.from(node.querySelectorAll("source[src]")).some(function (
+    return Array.from(node.querySelectorAll("source[src]")).some(function(
       source
     ) {
       var src = source.getAttribute("src");
@@ -1145,7 +1146,7 @@ function patchAttachShadow() {
   }
 
   var originalAttachShadow = Element.prototype.attachShadow;
-  Element.prototype.attachShadow = function () {
+  Element.prototype.attachShadow = function() {
     var shadowRoot = originalAttachShadow.apply(this, arguments);
     try {
       if (shadowRoot) {
@@ -1176,7 +1177,7 @@ function log(message, level) {
   }
 }
 
-chrome.storage.sync.get(tc.settings, function (storage) {
+chrome.storage.sync.get(tc.settings, function(storage) {
   var storedBindings = Array.isArray(storage.keyBindings)
     ? storage.keyBindings
     : [];
@@ -1282,7 +1283,7 @@ chrome.storage.sync.get(tc.settings, function (storage) {
   // We use a global flag to ensure the listener is only attached once.
   if (!window.vscMessageListener) {
     chrome.runtime.onMessage.addListener(
-      function (request, sender, sendResponse) {
+      function(request, sender, sendResponse) {
         if (request.action === "rescan_page") {
           log("Re-scan command received from popup.", 4);
           initializeWhenReady(document, true);
@@ -1323,7 +1324,7 @@ chrome.storage.sync.get(tc.settings, function (storage) {
     // Set the flag to prevent adding the listener again.
     window.vscMessageListener = true;
   }
-  chrome.storage.local.get(["customButtonIcons"], function (loc) {
+  chrome.storage.local.get(["customButtonIcons"], function(loc) {
     tc.settings.customButtonIcons =
       loc &&
       loc.customButtonIcons &&
@@ -1333,18 +1334,18 @@ chrome.storage.sync.get(tc.settings, function (storage) {
 
     if (!window.vscCustomIconListener) {
       window.vscCustomIconListener = true;
-      chrome.storage.onChanged.addListener(function (changes, area) {
+      chrome.storage.onChanged.addListener(function(changes, area) {
         if (area !== "local" || !changes.customButtonIcons) return;
         var nv = changes.customButtonIcons.newValue;
         tc.settings.customButtonIcons =
           nv && typeof nv === "object" ? nv : {};
         if (tc.mediaElements && tc.mediaElements.length) {
-          tc.mediaElements.forEach(function (video) {
+          tc.mediaElements.forEach(function(video) {
             if (!video.vsc || !video.vsc.div) return;
             var doc = video.ownerDocument;
             var shadow = video.vsc.div.shadowRoot;
             if (!shadow) return;
-            shadow.querySelectorAll("button[data-action]").forEach(function (btn) {
+            shadow.querySelectorAll("button[data-action]").forEach(function(btn) {
               var act = btn.dataset.action;
               if (!act) return;
               var svg =
@@ -1389,6 +1390,7 @@ function getKeyBindings(action, what = "value") {
     return false;
   }
 }
+
 function setKeyBindings(action, value) {
   tc.settings.keyBindings.find((item) => item.action === action)["value"] =
     value;
@@ -1425,7 +1427,7 @@ function createControllerButton(doc, action, label, className) {
 }
 
 function defineVideoController() {
-  tc.videoController = function (target, parent) {
+  tc.videoController = function(target, parent) {
     if (target.vsc) return target.vsc;
     tc.mediaElements.push(target);
     target.vsc = this;
@@ -1445,7 +1447,7 @@ function defineVideoController() {
       tc.settings.controllerLocation
     );
 
-    log(`Creating video controller for ${target.tagName} with src: ${target.src || target.currentSrc || 'none'}`, 4);
+    log(`Creating video controller for ${target.tagName} with src: ${target.src || target.currentSrc || "none"}`, 4);
 
     let storedSpeed = sanitizeSpeed(resolveTargetSpeed(target), 1.0);
     this.targetSpeed = storedSpeed;
@@ -1465,9 +1467,9 @@ function defineVideoController() {
       return;
     }
 
-    log(`Controller created and attached to DOM. Hidden: ${this.div.classList.contains('vsc-hidden')}`, 4);
+    log(`Controller created and attached to DOM. Hidden: ${this.div.classList.contains("vsc-hidden")}`, 4);
 
-    var mediaEventAction = function (event) {
+    var mediaEventAction = function(event) {
       if (
         event.type === "loadedmetadata" ||
         event.type === "loadeddata" ||
@@ -1585,7 +1587,7 @@ function defineVideoController() {
       this.startSubtitleNudge();
   };
 
-  tc.videoController.prototype.remove = function () {
+  tc.videoController.prototype.remove = function() {
     this.stopSubtitleNudge();
     if (this.youTubeAutoHideObserver) {
       this.youTubeAutoHideObserver.disconnect();
@@ -1617,7 +1619,7 @@ function defineVideoController() {
     if (idx != -1) tc.mediaElements.splice(idx, 1);
   };
 
-  tc.videoController.prototype.startSubtitleNudge = function () {
+  tc.videoController.prototype.startSubtitleNudge = function() {
     if (
       !isSubtitleNudgeSupported(this.video) ||
       !isSubtitleNudgeEnabledForVideo(this.video) ||
@@ -1690,7 +1692,7 @@ function defineVideoController() {
     log(`Nudge: Starting with interval ${tc.settings.subtitleNudgeInterval}ms.`, 5);
   };
 
-  tc.videoController.prototype.stopSubtitleNudge = function () {
+  tc.videoController.prototype.stopSubtitleNudge = function() {
     if (this.nudgeAnimationId !== null) {
       clearTimeout(this.nudgeAnimationId);
       this.nudgeAnimationId = null;
@@ -1708,7 +1710,7 @@ function defineVideoController() {
     // doesn't lose the user's intended speed if the site hijacks it.
   };
 
-  tc.videoController.prototype.performImmediateNudge = function () {
+  tc.videoController.prototype.performImmediateNudge = function() {
     if (
       !isSubtitleNudgeSupported(this.video) ||
       !isSubtitleNudgeEnabledForVideo(this.video) ||
@@ -1738,7 +1740,7 @@ function defineVideoController() {
     log(`Immediate nudge performed at rate ${targetRate.toFixed(2)}`, 5);
   };
 
-  tc.videoController.prototype.setupYouTubeAutoHide = function (wrapper) {
+  tc.videoController.prototype.setupYouTubeAutoHide = function(wrapper) {
     if (!wrapper || !isOnYouTube()) return;
 
     const video = this.video;
@@ -1754,7 +1756,7 @@ function defineVideoController() {
       // The vsc-hidden class (from V key) takes precedence via CSS specificity
       if (ytPlayer.classList.contains("ytp-autohide")) {
         wrapper.classList.add("ytp-autohide");
-        
+
         // Immediately end any temporary "vsc-show" state to hide with YouTube
         // UNLESS it was forced by a shortcut (vsc-forced-show)
         if (!wrapper.classList.contains("vsc-forced-show")) {
@@ -1764,7 +1766,7 @@ function defineVideoController() {
             wrapper.showTimeOut = undefined;
           }
         }
-        
+
         log("YouTube controls hidden, hiding controller", 5);
       } else {
         wrapper.classList.remove("ytp-autohide");
@@ -1814,7 +1816,7 @@ function defineVideoController() {
     };
   };
 
-  tc.videoController.prototype.setupGenericAutoHide = function (wrapper) {
+  tc.videoController.prototype.setupGenericAutoHide = function(wrapper) {
     if (!wrapper) return;
 
     const video = this.video;
@@ -1873,7 +1875,7 @@ function defineVideoController() {
     log(`Generic auto-hide setup complete with ${tc.settings.hideWithControlsTimer}s timer`, 4);
   };
 
-  tc.videoController.prototype.initializeControls = function () {
+  tc.videoController.prototype.initializeControls = function() {
     const doc = this.video.ownerDocument;
     const speed = this.video.playbackRate.toFixed(2);
     var wrapper = doc.createElement("div");
@@ -1911,7 +1913,7 @@ function defineVideoController() {
 
     var subtitleNudgeIndicator = null;
 
-    buttonConfig.forEach(function (btnId) {
+    buttonConfig.forEach(function(btnId) {
       if (btnId === "nudge") {
         subtitleNudgeIndicator = doc.createElement("span");
         subtitleNudgeIndicator.id = "nudge-indicator";
@@ -1943,20 +1945,22 @@ function defineVideoController() {
     this.subtitleNudgeIndicator = subtitleNudgeIndicator;
     this.nudgeFlashIndicator = nudgeFlashIndicator;
     this.resetButtonEl =
-      shadow.querySelector('button[data-action="reset"]') || null;
+      shadow.querySelector("button[data-action=\"reset\"]") || null;
     this.resetToggleArmed = false;
     if (subtitleNudgeIndicator) {
       updateSubtitleNudgeIndicator(this.video);
     }
+
     function blurAfterPointerTap(target, e) {
       if (!target || typeof target.blur !== "function") return;
       var pt = e.pointerType;
       if (pt === "mouse" || pt === "touch" || (!pt && e.detail > 0)) {
-        requestAnimationFrame(function () {
+        requestAnimationFrame(function() {
           target.blur();
         });
       }
     }
+
     dragHandle.addEventListener(
       "mousedown",
       (e) => {
@@ -2004,7 +2008,7 @@ function defineVideoController() {
         this.setupGenericAutoHide(wrapper);
       }
     }
-    
+
     var fragment = doc.createDocumentFragment();
     fragment.appendChild(wrapper);
     const parentEl = this.parent || this.video.parentElement;
@@ -2074,6 +2078,7 @@ function escapeStringRegExp(str) {
   const m = /[|\\{}()[\]^$+*?.]/g;
   return str.replace(m, "\\$&");
 }
+
 function applySiteRuleOverrides() {
   resetSettingsFromSiteRuleBase();
 
@@ -2152,7 +2157,7 @@ function applySiteRuleOverrides() {
   [
     "controllerMarginTop",
     "controllerMarginBottom"
-  ].forEach(function (key) {
+  ].forEach(function(key) {
     tc.settings[key] = normalizeControllerMarginPx(tc.settings[key], 0);
   });
 
@@ -2183,7 +2188,7 @@ function applySiteRuleOverrides() {
 
 /** Apply current tc.settings controller layout/opacity to every attached controller (after site rules). */
 function refreshAllControllerGeometry() {
-  tc.mediaElements.forEach(function (video) {
+  tc.mediaElements.forEach(function(video) {
     if (!video || !video.vsc) return;
     applyControllerLocation(video.vsc, tc.settings.controllerLocation);
     var controllerEl = getControllerElement(video.vsc);
@@ -2217,6 +2222,7 @@ function shouldPreserveDesiredSpeed(video, speed) {
 function setupListener(root) {
   root = root || document;
   if (root.vscRateListenerAttached) return;
+
   function updateSpeedFromEvent(video, skipResetDisarm) {
     if (!video.vsc || !video.vsc.speedIndicator) return;
     if (!skipResetDisarm) {
@@ -2237,9 +2243,10 @@ function setupListener(root) {
       else video.vsc.startSubtitleNudge();
     }
   }
+
   root.addEventListener(
     "ratechange",
-    function (event) {
+    function(event) {
       if (tc.isNudging) return;
       var video = event.target;
       if (!video || typeof video.playbackRate === "undefined" || !video.vsc)
@@ -2283,6 +2290,7 @@ function setupListener(root) {
 }
 
 var vscInitializedDocuments = new Set();
+
 function clearPendingInitialization(doc) {
   if (!doc || !doc.vscPendingInitializeHandler) return;
 
@@ -2319,7 +2327,7 @@ function initializeWhenReady(doc, forceReinit = false) {
 
   if (doc.vscPendingInitializeHandler) return;
 
-  var pendingInitializeHandler = function () {
+  var pendingInitializeHandler = function() {
     tryInitializeDocument(doc, doc.vscPendingForceReinit === true);
   };
 
@@ -2334,6 +2342,7 @@ function initializeWhenReady(doc, forceReinit = false) {
     setTimeout(pendingInitializeHandler, 0);
   }
 }
+
 function inIframe() {
   try {
     return window.self !== window.top;
@@ -2346,13 +2355,14 @@ function attachKeydownListeners(doc) {
   var docs = [doc];
   try {
     if (inIframe() && window.top.document !== doc) docs.push(window.top.document);
-  } catch (e) { }
+  } catch (e) {
+  }
 
-  docs.forEach(function (keyDoc) {
+  docs.forEach(function(keyDoc) {
     if (keyDoc.vscKeydownListenerAttached) return;
     keyDoc.addEventListener(
       "keydown",
-      function (event) {
+      function(event) {
         if (
           !event.getModifierState ||
           event.getModifierState("Alt") ||
@@ -2375,7 +2385,7 @@ function attachKeydownListeners(doc) {
 
         if (!tc.mediaElements.length) return;
 
-        var item = tc.settings.keyBindings.find(function (binding) {
+        var item = tc.settings.keyBindings.find(function(binding) {
           return matchesKeyBinding(binding, event);
         });
 
@@ -2399,24 +2409,24 @@ function attachMutationObserver(root) {
 
   var pendingMutations = [];
   var mutationProcessingScheduled = false;
-  var observer = new MutationObserver(function (mutations) {
+  var observer = new MutationObserver(function(mutations) {
     pendingMutations.push(...mutations);
     if (mutationProcessingScheduled) return;
 
     mutationProcessingScheduled = true;
     requestIdle(
-      function () {
+      function() {
         var mutationsToProcess = pendingMutations.splice(0);
         mutationProcessingScheduled = false;
 
-        mutationsToProcess.forEach(function (mutation) {
+        mutationsToProcess.forEach(function(mutation) {
           if (mutation.type === "childList") {
-            mutation.addedNodes.forEach(function (node) {
+            mutation.addedNodes.forEach(function(node) {
               // Skip text nodes, comments, etc. — only elements can contain media
               if (node.nodeType !== Node.ELEMENT_NODE) return;
               scanNodeForMedia(node, node.parentNode || mutation.target, true);
             });
-            mutation.removedNodes.forEach(function (node) {
+            mutation.removedNodes.forEach(function(node) {
               if (node.nodeType !== Node.ELEMENT_NODE) return;
               scanNodeForMedia(node, node.parentNode || mutation.target, false);
             });
@@ -2465,7 +2475,7 @@ function attachMutationObserver(root) {
 function attachMediaDetectionListeners(root) {
   if (root.vscMediaEventListenersAttached) return;
 
-  var handleDetectedMedia = function (event) {
+  var handleDetectedMedia = function(event) {
     var target = event.target;
     if (!isMediaElement(target)) return;
     ensureController(target, target.parentElement || target.parentNode);
@@ -2478,21 +2488,22 @@ function attachMediaDetectionListeners(root) {
     "canplay",
     "playing",
     "play"
-  ].forEach(function (eventName) {
+  ].forEach(function(eventName) {
     root.addEventListener(eventName, handleDetectedMedia, true);
   });
   root.vscMediaEventListenersAttached = true;
 }
 
 function attachIframeListeners(doc) {
-  Array.from(doc.getElementsByTagName("iframe")).forEach(function (frame) {
+  Array.from(doc.getElementsByTagName("iframe")).forEach(function(frame) {
     if (!frame.vscLoadListenerAttached) {
-      frame.addEventListener("load", function () {
+      frame.addEventListener("load", function() {
         try {
           if (frame.contentDocument) {
             initializeWhenReady(frame.contentDocument, true);
           }
-        } catch (e) { }
+        } catch (e) {
+        }
       });
       frame.vscLoadListenerAttached = true;
     }
@@ -2501,24 +2512,25 @@ function attachIframeListeners(doc) {
       if (frame.contentDocument) {
         initializeWhenReady(frame.contentDocument);
       }
-    } catch (e) { }
+    } catch (e) {
+    }
   });
 }
 
 function attachNavigationListeners() {
   if (window.vscNavigationListenersAttached) return;
 
-  var scheduleRescan = function () {
+  var scheduleRescan = function() {
     clearTimeout(window.vscNavigationRescanTimer);
-    window.vscNavigationRescanTimer = setTimeout(function () {
+    window.vscNavigationRescanTimer = setTimeout(function() {
       initializeWhenReady(document, true);
     }, 300);
   };
 
-  ["pushState", "replaceState"].forEach(function (method) {
+  ["pushState", "replaceState"].forEach(function(method) {
     if (typeof history[method] !== "function") return;
     var original = history[method];
-    history[method] = function () {
+    history[method] = function() {
       var result = original.apply(this, arguments);
       scheduleRescan();
       return result;
@@ -2665,7 +2677,7 @@ function runAction(action, value, e) {
     );
   }
 
-  mediaTagsToProcess.forEach(function (v) {
+  mediaTagsToProcess.forEach(function(v) {
     if (!v.vsc) return; // Don't process videos without a controller
     var controller = v.vsc.div;
     const userDrivenActionsThatShowController = [
@@ -2854,15 +2866,18 @@ function resetSpeed(v, target, isFastKey = false) {
 function muted(v) {
   v.muted = !v.muted;
 }
+
 function setMark(v) {
   v.vsc.mark = v.currentTime;
 }
+
 function jumpToMark(v) {
   if (v.vsc && typeof v.vsc.mark === "number") {
     extendSpeedRestoreWindow(v);
     v.currentTime = v.vsc.mark;
   }
 }
+
 function handleDrag(video, e) {
   const c = video.vsc.div;
   const sC = convertControllerToManualPosition(video.vsc);
@@ -2872,7 +2887,7 @@ function handleDrag(video, e) {
     pE.parentNode &&
     pE.parentNode.offsetHeight === pE.offsetHeight &&
     pE.parentNode.offsetWidth === pE.offsetWidth
-  )
+    )
     pE = pE.parentNode;
   video.classList.add("vcs-dragging");
   sC.classList.add("dragging");
@@ -2901,6 +2916,7 @@ function handleDrag(video, e) {
   pE.addEventListener("mouseleave", eD);
   pE.addEventListener("mousemove", sD);
 }
+
 function showController(controller, duration = 2000, forced = false) {
   if (!controller || typeof controller.classList === "undefined") return;
   var restoreHidden =
@@ -2918,7 +2934,7 @@ function showController(controller, duration = 2000, forced = false) {
     clearTimeout(controller.showTimeOut);
   }
 
-  controller.showTimeOut = setTimeout(function () {
+  controller.showTimeOut = setTimeout(function() {
     controller.classList.remove("vsc-show");
     controller.classList.remove("vsc-forced-show");
     if (controller.restoreHiddenAfterShow === true) {

From a7a0aafd6855b98a053d21a87172277497913682 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:31:27 -0400
Subject: [PATCH 3/9] Add Vitest suite and fix wrapped local import restore

---
 importExport.js                        |   92 +-
 inject.js                              |  181 +-
 manifest.json                          |    3 +
 options.html                           |    4 +
 options.js                             |  145 +-
 package-lock.json                      | 2128 ++++++++++++++++++++++++
 package.json                           |   12 +
 popup.html                             |    2 +
 popup.js                               |   90 +-
 shared/controller-utils.js             |   55 +
 shared/import-export.js                |   85 +
 shared/key-bindings.js                 |  122 ++
 shared/popup-controls.js               |   85 +
 shared/site-rules.js                   |   69 +
 tests/helpers/browser.js               |  164 ++
 tests/helpers/extension-test-utils.js  |  240 +++
 tests/importExport.integration.test.js |  224 +++
 tests/importExport.spec.js             |  189 +++
 tests/inject.spec.js                   |  141 ++
 tests/lucide-client.spec.js            |   61 +
 tests/options.integration.test.js      |  140 ++
 tests/options.spec.js                  |  230 +++
 tests/popup.integration.test.js        |  121 ++
 tests/popup.spec.js                    |  173 ++
 tests/setup.js                         |   25 +
 tests/shared.test.js                   |  145 ++
 vitest.config.js                       |   12 +
 27 files changed, 4555 insertions(+), 383 deletions(-)
 create mode 100644 package-lock.json
 create mode 100644 package.json
 create mode 100644 shared/controller-utils.js
 create mode 100644 shared/import-export.js
 create mode 100644 shared/key-bindings.js
 create mode 100644 shared/popup-controls.js
 create mode 100644 shared/site-rules.js
 create mode 100644 tests/helpers/browser.js
 create mode 100644 tests/helpers/extension-test-utils.js
 create mode 100644 tests/importExport.integration.test.js
 create mode 100644 tests/importExport.spec.js
 create mode 100644 tests/inject.spec.js
 create mode 100644 tests/lucide-client.spec.js
 create mode 100644 tests/options.integration.test.js
 create mode 100644 tests/options.spec.js
 create mode 100644 tests/popup.integration.test.js
 create mode 100644 tests/popup.spec.js
 create mode 100644 tests/setup.js
 create mode 100644 tests/shared.test.js
 create mode 100644 vitest.config.js

diff --git a/importExport.js b/importExport.js
index 3e55fca..19b9f4f 100644
--- a/importExport.js
+++ b/importExport.js
@@ -1,25 +1,20 @@
 // Import/Export functionality for Video Speed Controller settings
+var speederShared =
+  typeof SpeederShared === "object" && SpeederShared ? SpeederShared : {};
+var importExportUtils = speederShared.importExport || {};
 
 function generateBackupFilename() {
-  const now = new Date();
-  const year = now.getFullYear();
-  const month = String(now.getMonth() + 1).padStart(2, "0");
-  const day = String(now.getDate()).padStart(2, "0");
-  const hours = String(now.getHours()).padStart(2, "0");
-  const minutes = String(now.getMinutes()).padStart(2, "0");
-  const seconds = String(now.getSeconds()).padStart(2, "0");
-  return `speeder-backup_${year}-${month}-${day}_${hours}.${minutes}.${seconds}.json`;
+  return importExportUtils.generateBackupFilename(new Date());
 }
 
 function exportSettings() {
   chrome.storage.sync.get(null, function (storage) {
     chrome.storage.local.get(null, function (localStorage) {
-      const backup = {
-        version: "1.1",
-        exportDate: new Date().toISOString(),
-        settings: storage,
-        localSettings: localStorage || {}
-      };
+      const backup = importExportUtils.buildBackupPayload(
+        storage,
+        localStorage,
+        new Date()
+      );
 
       const dataStr = JSON.stringify(backup, null, 2);
       const blob = new Blob([dataStr], { type: "application/json" });
@@ -50,25 +45,50 @@ function importSettings() {
     const reader = new FileReader();
     reader.onload = function (e) {
       try {
-        const backup = JSON.parse(e.target.result);
-        let settingsToImport = null;
+        const parsedBackup = importExportUtils.parseImportText(e.target.result);
 
-        // Detect backup format: check for 'settings' wrapper or raw storage keys
-        if (backup.settings && typeof backup.settings === "object") {
-          settingsToImport = backup.settings;
-        } else if (typeof backup === "object" && (backup.keyBindings || backup.rememberSpeed !== undefined)) {
-          settingsToImport = backup; // Raw storage object
-        }
-
-        if (!settingsToImport) {
+        if (!parsedBackup) {
           showStatus("Error: Invalid backup file format", true);
           return;
         }
 
-        var localToImport =
-          backup.localSettings && typeof backup.localSettings === "object"
-            ? backup.localSettings
-            : null;
+        var settingsToImport = parsedBackup.settings;
+        var localToImport = parsedBackup.localSettings;
+
+        function importLocalSettings(callback) {
+          if (parsedBackup.isWrappedBackup !== true) {
+            callback();
+            return;
+          }
+
+          chrome.storage.local.clear(function () {
+            if (chrome.runtime.lastError) {
+              showStatus(
+                "Error: Failed to clear local extension data - " +
+                  chrome.runtime.lastError.message,
+                true
+              );
+              return;
+            }
+
+            if (localToImport && Object.keys(localToImport).length > 0) {
+              chrome.storage.local.set(localToImport, function () {
+                if (chrome.runtime.lastError) {
+                  showStatus(
+                    "Error: Failed to save local extension data - " +
+                      chrome.runtime.lastError.message,
+                    true
+                  );
+                  return;
+                }
+                callback();
+              });
+              return;
+            }
+
+            callback();
+          });
+        }
 
         function afterLocalImport() {
           chrome.storage.sync.clear(function () {
@@ -93,21 +113,7 @@ function importSettings() {
           });
         }
 
-        if (localToImport && Object.keys(localToImport).length > 0) {
-          chrome.storage.local.set(localToImport, function () {
-            if (chrome.runtime.lastError) {
-              showStatus(
-                "Error: Failed to save local extension data - " +
-                  chrome.runtime.lastError.message,
-                true
-              );
-              return;
-            }
-            afterLocalImport();
-          });
-        } else {
-          afterLocalImport();
-        }
+        importLocalSettings(afterLocalImport);
       } catch (err) {
         showStatus("Error: Failed to parse backup file - " + err.message, true);
       }
diff --git a/inject.js b/inject.js
index 8d90682..7f7318c 100644
--- a/inject.js
+++ b/inject.js
@@ -1,5 +1,10 @@
 var isUserSeek = false; // Track if seek was user-initiated
 var lastToggleSpeed = {}; // Store last toggle speeds per video
+var speederShared =
+  typeof SpeederShared === "object" && SpeederShared ? SpeederShared : {};
+var controllerUtils = speederShared.controllerUtils || {};
+var keyBindingUtils = speederShared.keyBindings || {};
+var siteRuleUtils = speederShared.siteRules || {};
 
 function getPrimaryVideoElement() {
   if (!tc.mediaElements || tc.mediaElements.length === 0) return null;
@@ -59,17 +64,20 @@ var requestIdle =
     : function(callback, options) {
       return setTimeout(callback, (options && options.timeout) || 1);
     };
-var controllerLocations = [
-  "top-left",
-  "top-center",
-  "top-right",
-  "middle-right",
-  "bottom-right",
-  "bottom-center",
-  "bottom-left",
-  "middle-left"
-];
-var defaultControllerLocation = controllerLocations[0];
+var controllerLocations = Array.isArray(controllerUtils.controllerLocations)
+  ? controllerUtils.controllerLocations.slice()
+  : [
+    "top-left",
+    "top-center",
+    "top-right",
+    "middle-right",
+    "bottom-right",
+    "bottom-center",
+    "bottom-left",
+    "middle-left"
+  ];
+var defaultControllerLocation =
+  controllerUtils.defaultControllerLocation || controllerLocations[0];
 var controllerLocationStyles = {
   "top-left": {
     top: "10px",
@@ -196,28 +204,20 @@ function ensureDefaultKeyBinding(action, code, value) {
 }
 
 function getLegacyKeyCode(binding) {
-  if (!binding) return null;
-  if (Number.isInteger(binding.keyCode)) return binding.keyCode;
-  if (typeof binding.key === "number" && Number.isInteger(binding.key)) {
-    return binding.key;
-  }
-  return null;
+  return keyBindingUtils.getLegacyKeyCode(binding);
 }
 
 function normalizeControllerLocation(location) {
-  if (controllerLocations.includes(location)) return location;
-  return defaultControllerLocation;
+  return controllerUtils.normalizeControllerLocation(
+    location,
+    defaultControllerLocation
+  );
 }
 
 var CONTROLLER_MARGIN_MAX_PX = 200;
 
 function normalizeControllerMarginPx(value, fallback) {
-  var n = Number(value);
-  if (!Number.isFinite(n)) return fallback;
-  return Math.min(
-    CONTROLLER_MARGIN_MAX_PX,
-    Math.max(0, Math.round(n))
-  );
+  return controllerUtils.clampControllerMarginPx(value, fallback);
 }
 
 function applyControllerMargins(controller) {
@@ -256,9 +256,7 @@ function applyControllerMargins(controller) {
 }
 
 function getNextControllerLocation(location) {
-  var normalizedLocation = normalizeControllerLocation(location);
-  var currentIndex = controllerLocations.indexOf(normalizedLocation);
-  return controllerLocations[(currentIndex + 1) % controllerLocations.length];
+  return controllerUtils.getNextControllerLocation(location);
 }
 
 function getControllerElement(videoOrController) {
@@ -478,98 +476,19 @@ function cycleControllerLocation(video) {
 }
 
 function normalizeBindingKey(key) {
-  if (typeof key !== "string" || key.length === 0) return null;
-  if (key === "Spacebar") return " ";
-  if (key === "Esc") return "Escape";
-  if (key.length === 1 && /[a-z]/i.test(key)) return key.toUpperCase();
-  return key;
+  return keyBindingUtils.normalizeBindingKey(key);
 }
 
 function legacyBindingKeyToCode(key) {
-  var normalizedKey = normalizeBindingKey(key);
-  if (!normalizedKey) return null;
-  if (/^[A-Z]$/.test(normalizedKey)) return "Key" + normalizedKey;
-  if (/^[0-9]$/.test(normalizedKey)) return "Digit" + normalizedKey;
-  if (/^F([1-9]|1[0-2])$/.test(normalizedKey)) return normalizedKey;
-
-  var keyMap = {
-    " ": "Space",
-    ArrowLeft: "ArrowLeft",
-    ArrowUp: "ArrowUp",
-    ArrowRight: "ArrowRight",
-    ArrowDown: "ArrowDown",
-    ";": "Semicolon",
-    "<": "Comma",
-    "-": "Minus",
-    "+": "Equal",
-    ">": "Period",
-    "/": "Slash",
-    "~": "Backquote",
-    "[": "BracketLeft",
-    "\\": "Backslash",
-    "]": "BracketRight",
-    "'": "Quote"
-  };
-
-  return keyMap[normalizedKey] || null;
+  return keyBindingUtils.legacyBindingKeyToCode(key);
 }
 
 function legacyKeyCodeToCode(keyCode) {
-  if (!Number.isInteger(keyCode)) return null;
-  if (keyCode >= 48 && keyCode <= 57) return "Digit" + String.fromCharCode(keyCode);
-  if (keyCode >= 65 && keyCode <= 90) return "Key" + String.fromCharCode(keyCode);
-  if (keyCode >= 96 && keyCode <= 105) return "Numpad" + (keyCode - 96);
-  if (keyCode >= 112 && keyCode <= 123) return "F" + (keyCode - 111);
-
-  var keyCodeMap = {
-    32: "Space",
-    37: "ArrowLeft",
-    38: "ArrowUp",
-    39: "ArrowRight",
-    40: "ArrowDown",
-    106: "NumpadMultiply",
-    107: "NumpadAdd",
-    109: "NumpadSubtract",
-    110: "NumpadDecimal",
-    111: "NumpadDivide",
-    186: "Semicolon",
-    188: "Comma",
-    189: "Minus",
-    187: "Equal",
-    190: "Period",
-    191: "Slash",
-    192: "Backquote",
-    219: "BracketLeft",
-    220: "Backslash",
-    221: "BracketRight",
-    222: "Quote",
-    59: "Semicolon",
-    61: "Equal",
-    173: "Minus"
-  };
-
-  return keyCodeMap[keyCode] || null;
+  return keyBindingUtils.legacyKeyCodeToCode(keyCode);
 }
 
 function inferBindingCode(binding, fallbackCode) {
-  if (binding && typeof binding.code === "string" && binding.code.length > 0) {
-    return binding.code;
-  }
-
-  if (binding && typeof binding.key === "string") {
-    var codeFromKey = legacyBindingKeyToCode(binding.key);
-    if (codeFromKey) return codeFromKey;
-  }
-
-  var legacyKeyCode = getLegacyKeyCode(binding);
-  if (Number.isInteger(legacyKeyCode)) {
-    var codeFromKeyCode = legacyKeyCodeToCode(legacyKeyCode);
-    if (codeFromKeyCode) return codeFromKeyCode;
-  }
-
-  return typeof fallbackCode === "string" && fallbackCode.length > 0
-    ? fallbackCode
-    : null;
+  return keyBindingUtils.inferBindingCode(binding, fallbackCode);
 }
 
 function normalizeStoredBinding(binding, fallbackCode) {
@@ -2074,11 +1993,6 @@ function defineVideoController() {
   };
 }
 
-function escapeStringRegExp(str) {
-  const m = /[|\\{}()[\]^$+*?.]/g;
-  return str.replace(m, "\\$&");
-}
-
 function applySiteRuleOverrides() {
   resetSettingsFromSiteRuleBase();
 
@@ -2087,34 +2001,7 @@ function applySiteRuleOverrides() {
   }
 
   var currentUrl = location.href;
-  var matchedRule = null;
-
-  for (var i = 0; i < tc.settings.siteRules.length; i++) {
-    var rule = tc.settings.siteRules[i];
-    var pattern = rule.pattern;
-    if (!pattern || pattern.length === 0) continue;
-
-    var regex;
-    if (pattern.startsWith("/") && pattern.lastIndexOf("/") > 0) {
-      try {
-        var lastSlash = pattern.lastIndexOf("/");
-        regex = new RegExp(
-          pattern.substring(1, lastSlash),
-          pattern.substring(lastSlash + 1)
-        );
-      } catch (e) {
-        log(`Invalid site rule regex: ${pattern}. ${e.message}`, 2);
-        continue;
-      }
-    } else {
-      regex = new RegExp(escapeStringRegExp(pattern));
-    }
-
-    if (regex && regex.test(currentUrl)) {
-      matchedRule = rule;
-      break;
-    }
-  }
+  var matchedRule = siteRuleUtils.matchSiteRule(currentUrl, tc.settings.siteRules);
 
   if (!matchedRule) return false;
 
@@ -2122,13 +2009,9 @@ function applySiteRuleOverrides() {
   log(`Matched site rule: ${matchedRule.pattern}`, 4);
 
   // Check if extension should be enabled/disabled on this site
-  if (matchedRule.enabled === false) {
+  if (siteRuleUtils.isSiteRuleDisabled(matchedRule)) {
     log(`Extension disabled for site: ${currentUrl}`, 4);
     return true;
-  } else if (matchedRule.disableExtension === true) {
-    // Handle old format
-    log(`Extension disabled (legacy) for site: ${currentUrl}`, 4);
-    return true;
   }
 
   // Override general settings with site-specific overrides
diff --git a/manifest.json b/manifest.json
index 3d2b692..1c859c7 100644
--- a/manifest.json
+++ b/manifest.json
@@ -59,6 +59,9 @@
         "inject.css"
       ],
       "js": [
+        "shared/controller-utils.js",
+        "shared/key-bindings.js",
+        "shared/site-rules.js",
         "ui-icons.js",
         "inject.js"
       ]
diff --git a/options.html b/options.html
index 3d5be8d..0bd6c9e 100644
--- a/options.html
+++ b/options.html
@@ -5,9 +5,13 @@
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>Speeder Settings</title>
     <link rel="stylesheet" href="options.css" />
+    <script src="shared/controller-utils.js"></script>
+    <script src="shared/key-bindings.js"></script>
+    <script src="shared/popup-controls.js"></script>
     <script src="ui-icons.js"></script>
     <script src="lucide-client.js"></script>
     <script src="options.js"></script>
+    <script src="shared/import-export.js"></script>
     <script src="importExport.js"></script>
   </head>
   <body>
diff --git a/options.js b/options.js
index 7851653..f26c5b9 100644
--- a/options.js
+++ b/options.js
@@ -1,4 +1,9 @@
 var regStrip = /^[\r\t\f\v ]+|[\r\t\f\v ]+$/gm;
+var speederShared =
+  typeof SpeederShared === "object" && SpeederShared ? SpeederShared : {};
+var controllerUtils = speederShared.controllerUtils || {};
+var keyBindingUtils = speederShared.keyBindings || {};
+var popupControlUtils = speederShared.popupControls || {};
 
 var keyBindings = [];
 
@@ -47,16 +52,18 @@ var modifierKeys = new Set([
   "Shift"
 ]);
 
-var controllerLocations = [
-  "top-left",
-  "top-center",
-  "top-right",
-  "middle-right",
-  "bottom-right",
-  "bottom-center",
-  "bottom-left",
-  "middle-left"
-];
+var controllerLocations = Array.isArray(controllerUtils.controllerLocations)
+  ? controllerUtils.controllerLocations.slice()
+  : [
+    "top-left",
+    "top-center",
+    "top-right",
+    "middle-right",
+    "bottom-right",
+    "bottom-center",
+    "bottom-left",
+    "middle-left"
+  ];
 
 var controllerButtonDefs = {
   rewind:   { icon: "\u00AB", name: "Rewind" },
@@ -82,15 +89,11 @@ var lucideSubtitleNudgeActionLabels = {
 };
 
 function sanitizePopupButtonOrder(buttonIds) {
-  if (!Array.isArray(buttonIds)) return [];
-  var seen = new Set();
-  return buttonIds.filter(function (id) {
-    if (!controllerButtonDefs[id] || popupExcludedButtonIds.has(id) || seen.has(id)) {
-      return false;
-    }
-    seen.add(id);
-    return true;
-  });
+  return popupControlUtils.sanitizeButtonOrder(
+    buttonIds,
+    controllerButtonDefs,
+    popupExcludedButtonIds
+  );
 }
 
 /** Cached custom Lucide SVGs (mirrors chrome.storage.local customButtonIcons). */
@@ -294,14 +297,14 @@ function ensureDefaultBinding(storage, action, code, value) {
 }
 
 function normalizeControllerLocation(location) {
-  if (controllerLocations.includes(location)) return location;
-  return tcDefaults.controllerLocation;
+  return controllerUtils.normalizeControllerLocation(
+    location,
+    tcDefaults.controllerLocation
+  );
 }
 
 function clampMarginPxInput(el, fallback) {
-  var n = parseInt(el && el.value, 10);
-  if (!Number.isFinite(n)) return fallback;
-  return Math.min(200, Math.max(0, n));
+  return controllerUtils.clampControllerMarginPx(el && el.value, fallback);
 }
 
 function syncSiteRuleField(ruleEl, rule, key, isCheckbox) {
@@ -321,107 +324,23 @@ function syncSiteRuleField(ruleEl, rule, key, isCheckbox) {
 }
 
 function normalizeBindingKey(key) {
-  if (typeof key !== "string" || key.length === 0) return null;
-  if (key === "Spacebar") return " ";
-  if (key === "Esc") return "Escape";
-  if (key.length === 1 && /[a-z]/i.test(key)) return key.toUpperCase();
-  return key;
+  return keyBindingUtils.normalizeBindingKey(key);
 }
 
 function getLegacyKeyCode(binding) {
-  if (!binding) return null;
-  if (Number.isInteger(binding.keyCode)) return binding.keyCode;
-  if (typeof binding.key === "number" && Number.isInteger(binding.key)) {
-    return binding.key;
-  }
-  return null;
+  return keyBindingUtils.getLegacyKeyCode(binding);
 }
 
 function legacyBindingKeyToCode(key) {
-  var normalizedKey = normalizeBindingKey(key);
-  if (!normalizedKey) return null;
-  if (/^[A-Z]$/.test(normalizedKey)) return "Key" + normalizedKey;
-  if (/^[0-9]$/.test(normalizedKey)) return "Digit" + normalizedKey;
-  if (/^F([1-9]|1[0-2])$/.test(normalizedKey)) return normalizedKey;
-
-  var keyMap = {
-    " ": "Space",
-    ArrowLeft: "ArrowLeft",
-    ArrowUp: "ArrowUp",
-    ArrowRight: "ArrowRight",
-    ArrowDown: "ArrowDown",
-    ";": "Semicolon",
-    "<": "Comma",
-    "-": "Minus",
-    "+": "Equal",
-    ">": "Period",
-    "/": "Slash",
-    "~": "Backquote",
-    "[": "BracketLeft",
-    "\\": "Backslash",
-    "]": "BracketRight",
-    "'": "Quote"
-  };
-
-  return keyMap[normalizedKey] || null;
+  return keyBindingUtils.legacyBindingKeyToCode(key);
 }
 
 function legacyKeyCodeToCode(keyCode) {
-  if (!Number.isInteger(keyCode)) return null;
-  if (keyCode >= 48 && keyCode <= 57) return "Digit" + String.fromCharCode(keyCode);
-  if (keyCode >= 65 && keyCode <= 90) return "Key" + String.fromCharCode(keyCode);
-  if (keyCode >= 96 && keyCode <= 105) return "Numpad" + (keyCode - 96);
-  if (keyCode >= 112 && keyCode <= 123) return "F" + (keyCode - 111);
-
-  var keyCodeMap = {
-    32: "Space",
-    37: "ArrowLeft",
-    38: "ArrowUp",
-    39: "ArrowRight",
-    40: "ArrowDown",
-    106: "NumpadMultiply",
-    107: "NumpadAdd",
-    109: "NumpadSubtract",
-    110: "NumpadDecimal",
-    111: "NumpadDivide",
-    186: "Semicolon",
-    188: "Comma",
-    189: "Minus",
-    187: "Equal",
-    190: "Period",
-    191: "Slash",
-    192: "Backquote",
-    219: "BracketLeft",
-    220: "Backslash",
-    221: "BracketRight",
-    222: "Quote",
-    59: "Semicolon",
-    61: "Equal",
-    173: "Minus"
-  };
-
-  return keyCodeMap[keyCode] || null;
+  return keyBindingUtils.legacyKeyCodeToCode(keyCode);
 }
 
 function inferBindingCode(binding, fallbackCode) {
-  if (binding && typeof binding.code === "string" && binding.code.length > 0) {
-    return binding.code;
-  }
-
-  if (binding && typeof binding.key === "string") {
-    var codeFromKey = legacyBindingKeyToCode(binding.key);
-    if (codeFromKey) return codeFromKey;
-  }
-
-  var legacyKeyCode = getLegacyKeyCode(binding);
-  if (Number.isInteger(legacyKeyCode)) {
-    var codeFromKeyCode = legacyKeyCodeToCode(legacyKeyCode);
-    if (codeFromKeyCode) return codeFromKeyCode;
-  }
-
-  return typeof fallbackCode === "string" && fallbackCode.length > 0
-    ? fallbackCode
-    : null;
+  return keyBindingUtils.inferBindingCode(binding, fallbackCode);
 }
 
 function createDisabledBinding() {
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..320da4a
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,2128 @@
+{
+  "name": "speeder",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "speeder",
+      "devDependencies": {
+        "jsdom": "^26.1.0",
+        "vitest": "^3.2.4"
+      }
+    },
+    "node_modules/@asamuzakjp/css-color": {
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/css-calc": "^2.1.3",
+        "@csstools/css-color-parser": "^3.0.9",
+        "@csstools/css-parser-algorithms": "^3.0.4",
+        "@csstools/css-tokenizer": "^3.0.3",
+        "lru-cache": "^10.4.3"
+      }
+    },
+    "node_modules/@csstools/color-helpers": {
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+      "resolved": "https://registry.npmjs.org/@csstools/color-helpers/-/color-helpers-5.1.0.tgz",
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+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@csstools/css-calc": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@csstools/css-calc/-/css-calc-2.1.4.tgz",
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+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^3.0.5",
+        "@csstools/css-tokenizer": "^3.0.4"
+      }
+    },
+    "node_modules/@csstools/css-color-parser": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-color-parser/-/css-color-parser-3.1.0.tgz",
+      "integrity": "sha512-nbtKwh3a6xNVIp/VRuXV64yTKnb1IjTAEEh3irzS+HkKjAOYLTGNb9pmVNntZ8iVBHcWDA2Dof0QtPgFI1BaTA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/color-helpers": "^5.1.0",
+        "@csstools/css-calc": "^2.1.4"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^3.0.5",
+        "@csstools/css-tokenizer": "^3.0.4"
+      }
+    },
+    "node_modules/@csstools/css-parser-algorithms": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/@csstools/css-parser-algorithms/-/css-parser-algorithms-3.0.5.tgz",
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+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
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+      }
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+          "url": "https://github.com/sponsors/csstools"
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+        "@vitest/pretty-format": "^3.2.4",
+        "@vitest/runner": "3.2.4",
+        "@vitest/snapshot": "3.2.4",
+        "@vitest/spy": "3.2.4",
+        "@vitest/utils": "3.2.4",
+        "chai": "^5.2.0",
+        "debug": "^4.4.1",
+        "expect-type": "^1.2.1",
+        "magic-string": "^0.30.17",
+        "pathe": "^2.0.3",
+        "picomatch": "^4.0.2",
+        "std-env": "^3.9.0",
+        "tinybench": "^2.9.0",
+        "tinyexec": "^0.3.2",
+        "tinyglobby": "^0.2.14",
+        "tinypool": "^1.1.1",
+        "tinyrainbow": "^2.0.0",
+        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0",
+        "vite-node": "3.2.4",
+        "why-is-node-running": "^2.3.0"
+      },
+      "bin": {
+        "vitest": "vitest.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || ^20.0.0 || >=22.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@edge-runtime/vm": "*",
+        "@types/debug": "^4.1.12",
+        "@types/node": "^18.0.0 || ^20.0.0 || >=22.0.0",
+        "@vitest/browser": "3.2.4",
+        "@vitest/ui": "3.2.4",
+        "happy-dom": "*",
+        "jsdom": "*"
+      },
+      "peerDependenciesMeta": {
+        "@edge-runtime/vm": {
+          "optional": true
+        },
+        "@types/debug": {
+          "optional": true
+        },
+        "@types/node": {
+          "optional": true
+        },
+        "@vitest/browser": {
+          "optional": true
+        },
+        "@vitest/ui": {
+          "optional": true
+        },
+        "happy-dom": {
+          "optional": true
+        },
+        "jsdom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/w3c-xmlserializer": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz",
+      "integrity": "sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/webidl-conversions": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz",
+      "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/whatwg-encoding": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-3.1.1.tgz",
+      "integrity": "sha512-6qN4hJdMwfYBtE3YBTTHhoeuUrDBPZmbQaxWAqSALV/MeEnR5z1xd8UKud2RAkFoPkmB+hli1TZSnyi84xz1vQ==",
+      "deprecated": "Use @exodus/bytes instead for a more spec-conformant and faster implementation",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "iconv-lite": "0.6.3"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/whatwg-mimetype": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-4.0.0.tgz",
+      "integrity": "sha512-QaKxh0eNIi2mE9p2vEdzfagOKHCcj1pJ56EEHGQOVxp8r9/iszLUUV7v89x9O1p/T+NlTM5W7jW6+cz4Fq1YVg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/whatwg-url": {
+      "version": "14.2.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-14.2.0.tgz",
+      "integrity": "sha512-De72GdQZzNTUBBChsXueQUnPKDkg/5A5zp7pFDuQAj5UFoENpiACU0wlCvzpAGnTkj++ihpKwKyYewn/XNUbKw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tr46": "^5.1.0",
+        "webidl-conversions": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/why-is-node-running": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
+      "integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "siginfo": "^2.0.0",
+        "stackback": "0.0.2"
+      },
+      "bin": {
+        "why-is-node-running": "cli.js"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/ws": {
+      "version": "8.20.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.0.tgz",
+      "integrity": "sha512-sAt8BhgNbzCtgGbt2OxmpuryO63ZoDk/sqaB/znQm94T4fCEsy/yV+7CdC1kJhOU9lboAEU7R3kquuycDoibVA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/xml-name-validator": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
+      "integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/xmlchars": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
+      "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
+      "dev": true,
+      "license": "MIT"
+    }
+  }
+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..d7d1ddf
--- /dev/null
+++ b/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "speeder",
+  "private": true,
+  "scripts": {
+    "test": "vitest run",
+    "test:watch": "vitest"
+  },
+  "devDependencies": {
+    "jsdom": "^26.1.0",
+    "vitest": "^3.2.4"
+  }
+}
diff --git a/popup.html b/popup.html
index 35371f3..cae9e41 100644
--- a/popup.html
+++ b/popup.html
@@ -4,6 +4,8 @@
     <meta charset="utf-8" />
     <title>Speeder</title>
     <link rel="stylesheet" href="popup.css" />
+    <script src="shared/site-rules.js"></script>
+    <script src="shared/popup-controls.js"></script>
     <script src="ui-icons.js"></script>
     <script src="popup.js"></script>
   </head>
diff --git a/popup.js b/popup.js
index 3154478..1eabdbd 100644
--- a/popup.js
+++ b/popup.js
@@ -1,5 +1,8 @@
 document.addEventListener("DOMContentLoaded", function () {
-  var regStrip = /^[\r\t\f\v ]+|[\r\t\f\v ]+$/gm;
+  var speederShared =
+    typeof SpeederShared === "object" && SpeederShared ? SpeederShared : {};
+  var siteRuleUtils = speederShared.siteRules || {};
+  var popupControlUtils = speederShared.popupControls || {};
 
   /* `label` is only used if ui-icons.js has no path for this action (fallback). */
   var controllerButtonDefs = {
@@ -30,73 +33,20 @@ document.addEventListener("DOMContentLoaded", function () {
   };
   var renderToken = 0;
 
-  function escapeStringRegExp(str) {
-    const m = /[|\\{}()[\]^$+*?.]/g;
-    return str.replace(m, "\\$&");
-  }
-
   function matchSiteRule(url, siteRules) {
-    if (!url || !Array.isArray(siteRules)) return null;
-    for (var i = 0; i < siteRules.length; i++) {
-      var rule = siteRules[i];
-      if (!rule || !rule.pattern) continue;
-      var pattern = rule.pattern.replace(regStrip, "");
-      if (pattern.length === 0) continue;
-      var re;
-      if (pattern.startsWith("/") && pattern.lastIndexOf("/") > 0) {
-        try {
-          var ls = pattern.lastIndexOf("/");
-          re = new RegExp(pattern.substring(1, ls), pattern.substring(ls + 1));
-        } catch (e) {
-          continue;
-        }
-      } else {
-        re = new RegExp(escapeStringRegExp(pattern));
-      }
-      if (re && re.test(url)) return rule;
-    }
-    return null;
+    return siteRuleUtils.matchSiteRule(url, siteRules);
   }
 
   function isSiteRuleDisabled(rule) {
-    return Boolean(
-      rule &&
-      (rule.enabled === false || rule.disableExtension === true)
-    );
+    return siteRuleUtils.isSiteRuleDisabled(rule);
   }
 
   function resolvePopupButtons(storage, siteRule) {
-    function sanitize(buttons) {
-      if (!Array.isArray(buttons)) return [];
-      var seen = new Set();
-      return buttons.filter(function (id) {
-        if (!controllerButtonDefs[id] || popupExcludedButtonIds.has(id) || seen.has(id)) {
-          return false;
-        }
-        seen.add(id);
-        return true;
-      });
-    }
-
-    if (siteRule && Array.isArray(siteRule.popupControllerButtons)) {
-      return sanitize(siteRule.popupControllerButtons);
-    }
-
-    if (storage.popupMatchHoverControls) {
-      if (siteRule && Array.isArray(siteRule.controllerButtons)) {
-        return sanitize(siteRule.controllerButtons);
-      }
-
-      if (Array.isArray(storage.controllerButtons)) {
-        return sanitize(storage.controllerButtons);
-      }
-    }
-
-    if (Array.isArray(storage.popupControllerButtons)) {
-      return sanitize(storage.popupControllerButtons);
-    }
-
-    return sanitize(defaultButtons);
+    return popupControlUtils.resolvePopupButtons(storage, siteRule, {
+      controllerButtonDefs: controllerButtonDefs,
+      defaultButtons: defaultButtons,
+      excludedIds: popupExcludedButtonIds
+    });
   }
 
   function setControlBarVisible(visible) {
@@ -165,23 +115,7 @@ document.addEventListener("DOMContentLoaded", function () {
   }
 
   function pickBestFrameSpeedResult(results) {
-    if (!results || !results.length) return null;
-    var i;
-    var r;
-    var fallback = null;
-    for (i = 0; i < results.length; i++) {
-      r = results[i];
-      if (!r || typeof r.speed !== "number") {
-        continue;
-      }
-      if (r.preferred) {
-        return { speed: r.speed };
-      }
-      if (!fallback) {
-        fallback = { speed: r.speed };
-      }
-    }
-    return fallback;
+    return popupControlUtils.pickBestFrameSpeedResult(results);
   }
 
   function querySpeed() {
diff --git a/shared/controller-utils.js b/shared/controller-utils.js
new file mode 100644
index 0000000..6988b70
--- /dev/null
+++ b/shared/controller-utils.js
@@ -0,0 +1,55 @@
+(function(root, factory) {
+  var exports = factory();
+
+  if (typeof module === "object" && module.exports) {
+    module.exports = exports;
+  }
+
+  root.SpeederShared = root.SpeederShared || {};
+  root.SpeederShared.controllerUtils = exports;
+})(typeof globalThis !== "undefined" ? globalThis : this, function() {
+  var CONTROLLER_MARGIN_MAX_PX = 200;
+  var controllerLocations = [
+    "top-left",
+    "top-center",
+    "top-right",
+    "middle-right",
+    "bottom-right",
+    "bottom-center",
+    "bottom-left",
+    "middle-left"
+  ];
+  var defaultControllerLocation = controllerLocations[0];
+
+  function normalizeControllerLocation(location, fallback) {
+    if (controllerLocations.includes(location)) return location;
+    return typeof fallback === "string"
+      ? fallback
+      : defaultControllerLocation;
+  }
+
+  function clampControllerMarginPx(value, fallback) {
+    var numericValue = Number(value);
+    if (!Number.isFinite(numericValue)) return fallback;
+
+    return Math.min(
+      CONTROLLER_MARGIN_MAX_PX,
+      Math.max(0, Math.round(numericValue))
+    );
+  }
+
+  function getNextControllerLocation(location) {
+    var normalizedLocation = normalizeControllerLocation(location);
+    var currentIndex = controllerLocations.indexOf(normalizedLocation);
+    return controllerLocations[(currentIndex + 1) % controllerLocations.length];
+  }
+
+  return {
+    CONTROLLER_MARGIN_MAX_PX: CONTROLLER_MARGIN_MAX_PX,
+    clampControllerMarginPx: clampControllerMarginPx,
+    controllerLocations: controllerLocations.slice(),
+    defaultControllerLocation: defaultControllerLocation,
+    getNextControllerLocation: getNextControllerLocation,
+    normalizeControllerLocation: normalizeControllerLocation
+  };
+});
diff --git a/shared/import-export.js b/shared/import-export.js
new file mode 100644
index 0000000..507d5f0
--- /dev/null
+++ b/shared/import-export.js
@@ -0,0 +1,85 @@
+(function(root, factory) {
+  var exports = factory();
+
+  if (typeof module === "object" && module.exports) {
+    module.exports = exports;
+  }
+
+  root.SpeederShared = root.SpeederShared || {};
+  root.SpeederShared.importExport = exports;
+})(typeof globalThis !== "undefined" ? globalThis : this, function() {
+  function generateBackupFilename(now) {
+    var date = now instanceof Date ? now : new Date(now || Date.now());
+    var year = date.getFullYear();
+    var month = String(date.getMonth() + 1).padStart(2, "0");
+    var day = String(date.getDate()).padStart(2, "0");
+    var hours = String(date.getHours()).padStart(2, "0");
+    var minutes = String(date.getMinutes()).padStart(2, "0");
+    var seconds = String(date.getSeconds()).padStart(2, "0");
+
+    return (
+      "speeder-backup_" +
+      year +
+      "-" +
+      month +
+      "-" +
+      day +
+      "_" +
+      hours +
+      "." +
+      minutes +
+      "." +
+      seconds +
+      ".json"
+    );
+  }
+
+  function buildBackupPayload(settings, localSettings, now) {
+    return {
+      version: "1.1",
+      exportDate: new Date(now || Date.now()).toISOString(),
+      settings: settings,
+      localSettings: localSettings || {}
+    };
+  }
+
+  function extractImportSettings(backup) {
+    var settingsToImport = null;
+    var isWrappedBackup = false;
+
+    if (backup && backup.settings && typeof backup.settings === "object") {
+      settingsToImport = backup.settings;
+      isWrappedBackup = true;
+    } else if (
+      backup &&
+      typeof backup === "object" &&
+      (backup.keyBindings || backup.rememberSpeed !== undefined)
+    ) {
+      settingsToImport = backup;
+    }
+
+    if (!settingsToImport) return null;
+
+    return {
+      isWrappedBackup: isWrappedBackup,
+      settings: settingsToImport,
+      localSettings:
+        backup &&
+        backup.localSettings &&
+        typeof backup.localSettings === "object"
+          ? backup.localSettings
+          : null
+    };
+  }
+
+  function parseImportText(text) {
+    return extractImportSettings(JSON.parse(text));
+  }
+
+  return {
+    buildBackupPayload: buildBackupPayload,
+    extractImportSettings: extractImportSettings,
+    generateBackupFilename: generateBackupFilename,
+    parseImportText: parseImportText
+  };
+});
diff --git a/shared/key-bindings.js b/shared/key-bindings.js
new file mode 100644
index 0000000..ec4faf3
--- /dev/null
+++ b/shared/key-bindings.js
@@ -0,0 +1,122 @@
+(function(root, factory) {
+  var exports = factory();
+
+  if (typeof module === "object" && module.exports) {
+    module.exports = exports;
+  }
+
+  root.SpeederShared = root.SpeederShared || {};
+  root.SpeederShared.keyBindings = exports;
+})(typeof globalThis !== "undefined" ? globalThis : this, function() {
+  function normalizeBindingKey(key) {
+    if (typeof key !== "string" || key.length === 0) return null;
+    if (key === "Spacebar") return " ";
+    if (key === "Esc") return "Escape";
+    if (key.length === 1 && /[a-z]/i.test(key)) return key.toUpperCase();
+    return key;
+  }
+
+  function getLegacyKeyCode(binding) {
+    if (!binding) return null;
+    if (Number.isInteger(binding.keyCode)) return binding.keyCode;
+    if (typeof binding.key === "number" && Number.isInteger(binding.key)) {
+      return binding.key;
+    }
+    return null;
+  }
+
+  function legacyBindingKeyToCode(key) {
+    var normalizedKey = normalizeBindingKey(key);
+    if (!normalizedKey) return null;
+    if (/^[A-Z]$/.test(normalizedKey)) return "Key" + normalizedKey;
+    if (/^[0-9]$/.test(normalizedKey)) return "Digit" + normalizedKey;
+    if (/^F([1-9]|1[0-2])$/.test(normalizedKey)) return normalizedKey;
+
+    var keyMap = {
+      " ": "Space",
+      ArrowLeft: "ArrowLeft",
+      ArrowUp: "ArrowUp",
+      ArrowRight: "ArrowRight",
+      ArrowDown: "ArrowDown",
+      ";": "Semicolon",
+      "<": "Comma",
+      "-": "Minus",
+      "+": "Equal",
+      ">": "Period",
+      "/": "Slash",
+      "~": "Backquote",
+      "[": "BracketLeft",
+      "\\": "Backslash",
+      "]": "BracketRight",
+      "'": "Quote"
+    };
+
+    return keyMap[normalizedKey] || null;
+  }
+
+  function legacyKeyCodeToCode(keyCode) {
+    if (!Number.isInteger(keyCode)) return null;
+    if (keyCode >= 48 && keyCode <= 57) return "Digit" + String.fromCharCode(keyCode);
+    if (keyCode >= 65 && keyCode <= 90) return "Key" + String.fromCharCode(keyCode);
+    if (keyCode >= 96 && keyCode <= 105) return "Numpad" + (keyCode - 96);
+    if (keyCode >= 112 && keyCode <= 123) return "F" + (keyCode - 111);
+
+    var keyCodeMap = {
+      32: "Space",
+      37: "ArrowLeft",
+      38: "ArrowUp",
+      39: "ArrowRight",
+      40: "ArrowDown",
+      106: "NumpadMultiply",
+      107: "NumpadAdd",
+      109: "NumpadSubtract",
+      110: "NumpadDecimal",
+      111: "NumpadDivide",
+      186: "Semicolon",
+      188: "Comma",
+      189: "Minus",
+      187: "Equal",
+      190: "Period",
+      191: "Slash",
+      192: "Backquote",
+      219: "BracketLeft",
+      220: "Backslash",
+      221: "BracketRight",
+      222: "Quote",
+      59: "Semicolon",
+      61: "Equal",
+      173: "Minus"
+    };
+
+    return keyCodeMap[keyCode] || null;
+  }
+
+  function inferBindingCode(binding, fallbackCode) {
+    if (binding && typeof binding.code === "string" && binding.code.length > 0) {
+      return binding.code;
+    }
+
+    if (binding && typeof binding.key === "string") {
+      var codeFromKey = legacyBindingKeyToCode(binding.key);
+      if (codeFromKey) return codeFromKey;
+    }
+
+    var legacyKeyCode = getLegacyKeyCode(binding);
+    if (Number.isInteger(legacyKeyCode)) {
+      var codeFromKeyCode = legacyKeyCodeToCode(legacyKeyCode);
+      if (codeFromKeyCode) return codeFromKeyCode;
+    }
+
+    return typeof fallbackCode === "string" && fallbackCode.length > 0
+      ? fallbackCode
+      : null;
+  }
+
+  return {
+    getLegacyKeyCode: getLegacyKeyCode,
+    inferBindingCode: inferBindingCode,
+    legacyBindingKeyToCode: legacyBindingKeyToCode,
+    legacyKeyCodeToCode: legacyKeyCodeToCode,
+    normalizeBindingKey: normalizeBindingKey
+  };
+});
diff --git a/shared/popup-controls.js b/shared/popup-controls.js
new file mode 100644
index 0000000..c85e4e5
--- /dev/null
+++ b/shared/popup-controls.js
@@ -0,0 +1,85 @@
+(function(root, factory) {
+  var exports = factory();
+
+  if (typeof module === "object" && module.exports) {
+    module.exports = exports;
+  }
+
+  root.SpeederShared = root.SpeederShared || {};
+  root.SpeederShared.popupControls = exports;
+})(typeof globalThis !== "undefined" ? globalThis : this, function() {
+  function normalizeExcludedIds(excludedIds) {
+    if (excludedIds instanceof Set) return excludedIds;
+    return new Set(Array.isArray(excludedIds) ? excludedIds : []);
+  }
+
+  function sanitizeButtonOrder(buttonIds, controllerButtonDefs, excludedIds) {
+    if (!Array.isArray(buttonIds)) return [];
+
+    var seen = new Set();
+    var excluded = normalizeExcludedIds(excludedIds);
+
+    return buttonIds.filter(function(id) {
+      if (!controllerButtonDefs[id] || excluded.has(id) || seen.has(id)) {
+        return false;
+      }
+
+      seen.add(id);
+      return true;
+    });
+  }
+
+  function resolvePopupButtons(storage, siteRule, options) {
+    var settings = storage || {};
+    var config = options || {};
+    var controllerButtonDefs = config.controllerButtonDefs || {};
+    var defaultButtons = Array.isArray(config.defaultButtons)
+      ? config.defaultButtons
+      : [];
+    var excludedIds = config.excludedIds;
+
+    function sanitize(buttonIds) {
+      return sanitizeButtonOrder(buttonIds, controllerButtonDefs, excludedIds);
+    }
+
+    if (siteRule && Array.isArray(siteRule.popupControllerButtons)) {
+      return sanitize(siteRule.popupControllerButtons);
+    }
+
+    if (settings.popupMatchHoverControls) {
+      if (siteRule && Array.isArray(siteRule.controllerButtons)) {
+        return sanitize(siteRule.controllerButtons);
+      }
+
+      if (Array.isArray(settings.controllerButtons)) {
+        return sanitize(settings.controllerButtons);
+      }
+    }
+
+    if (Array.isArray(settings.popupControllerButtons)) {
+      return sanitize(settings.popupControllerButtons);
+    }
+
+    return sanitize(defaultButtons);
+  }
+
+  function pickBestFrameSpeedResult(results) {
+    if (!results || !results.length) return null;
+
+    var fallback = null;
+    for (var i = 0; i < results.length; i++) {
+      var result = results[i];
+      if (!result || typeof result.speed !== "number") continue;
+      if (result.preferred) return { speed: result.speed };
+      if (!fallback) fallback = { speed: result.speed };
+    }
+
+    return fallback;
+  }
+
+  return {
+    pickBestFrameSpeedResult: pickBestFrameSpeedResult,
+    resolvePopupButtons: resolvePopupButtons,
+    sanitizeButtonOrder: sanitizeButtonOrder
+  };
+});
diff --git a/shared/site-rules.js b/shared/site-rules.js
new file mode 100644
index 0000000..1d327f1
--- /dev/null
+++ b/shared/site-rules.js
@@ -0,0 +1,69 @@
+(function(root, factory) {
+  var exports = factory();
+
+  if (typeof module === "object" && module.exports) {
+    module.exports = exports;
+  }
+
+  root.SpeederShared = root.SpeederShared || {};
+  root.SpeederShared.siteRules = exports;
+})(typeof globalThis !== "undefined" ? globalThis : this, function() {
+  var regStrip = /^[\r\t\f\v ]+|[\r\t\f\v ]+$/gm;
+
+  function escapeStringRegExp(str) {
+    return String(str).replace(/[|\\{}()[\]^$+*?.]/g, "\\$&");
+  }
+
+  function compileSiteRulePattern(pattern) {
+    if (typeof pattern !== "string") return null;
+
+    var normalizedPattern = pattern.replace(regStrip, "");
+    if (normalizedPattern.length === 0) return null;
+
+    if (
+      normalizedPattern.startsWith("/") &&
+      normalizedPattern.lastIndexOf("/") > 0
+    ) {
+      var lastSlash = normalizedPattern.lastIndexOf("/");
+      return new RegExp(
+        normalizedPattern.substring(1, lastSlash),
+        normalizedPattern.substring(lastSlash + 1)
+      );
+    }
+
+    return new RegExp(escapeStringRegExp(normalizedPattern));
+  }
+
+  function matchSiteRule(url, siteRules) {
+    if (!url || !Array.isArray(siteRules)) return null;
+
+    for (var i = 0; i < siteRules.length; i++) {
+      var rule = siteRules[i];
+      if (!rule || !rule.pattern) continue;
+
+      try {
+        var re = compileSiteRulePattern(rule.pattern);
+        if (re && re.test(url)) {
+          return rule;
+        }
+      } catch (e) {
+      }
+    }
+
+    return null;
+  }
+
+  function isSiteRuleDisabled(rule) {
+    return Boolean(
+      rule &&
+      (rule.enabled === false || rule.disableExtension === true)
+    );
+  }
+
+  return {
+    compileSiteRulePattern: compileSiteRulePattern,
+    escapeStringRegExp: escapeStringRegExp,
+    isSiteRuleDisabled: isSiteRuleDisabled,
+    matchSiteRule: matchSiteRule
+  };
+});
diff --git a/tests/helpers/browser.js b/tests/helpers/browser.js
new file mode 100644
index 0000000..bf864bf
--- /dev/null
+++ b/tests/helpers/browser.js
@@ -0,0 +1,164 @@
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { vi } from "vitest";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const repoRoot = path.resolve(__dirname, "..", "..");
+
+function readRepoFile(relPath) {
+  return fs.readFileSync(path.join(repoRoot, relPath), "utf8");
+}
+
+export function loadHtml(relPath) {
+  document.open();
+  document.write(readRepoFile(relPath));
+  document.close();
+}
+
+export function loadScript(relPath) {
+  window.eval(
+    "var chrome = window.chrome || globalThis.chrome;\n" +
+      readRepoFile(relPath) +
+      "\n//# sourceURL=" +
+      relPath
+  );
+}
+
+export async function flushAsyncWork() {
+  await Promise.resolve();
+  await Promise.resolve();
+}
+
+export function triggerDomContentLoaded() {
+  document.dispatchEvent(
+    new window.Event("DOMContentLoaded", {
+      bubbles: true,
+      cancelable: true
+    })
+  );
+}
+
+function createEvent() {
+  const listeners = [];
+  return {
+    addListener(listener) {
+      listeners.push(listener);
+    },
+    trigger(...args) {
+      listeners.forEach((listener) => listener(...args));
+    },
+    listeners
+  };
+}
+
+function createStorageArea(initialState = {}) {
+  const state = { ...initialState };
+
+  function resolveGet(keys) {
+    if (keys == null) return { ...state };
+    if (Array.isArray(keys)) {
+      return keys.reduce((acc, key) => {
+        if (Object.prototype.hasOwnProperty.call(state, key)) {
+          acc[key] = state[key];
+        }
+        return acc;
+      }, {});
+    }
+    if (typeof keys === "string") {
+      return Object.prototype.hasOwnProperty.call(state, keys)
+        ? { [keys]: state[keys] }
+        : {};
+    }
+    if (typeof keys === "object") {
+      const result = { ...keys };
+      Object.keys(state).forEach((key) => {
+        result[key] = state[key];
+      });
+      return result;
+    }
+    return {};
+  }
+
+  return {
+    __state: state,
+    get: vi.fn((keys, callback) => {
+      callback(resolveGet(keys));
+    }),
+    set: vi.fn((items, callback) => {
+      Object.assign(state, items);
+      if (callback) callback();
+    }),
+    remove: vi.fn((keys, callback) => {
+      const list = Array.isArray(keys) ? keys : [keys];
+      list.forEach((key) => {
+        delete state[key];
+      });
+      if (callback) callback();
+    }),
+    clear: vi.fn((callback) => {
+      Object.keys(state).forEach((key) => delete state[key]);
+      if (callback) callback();
+    })
+  };
+}
+
+export function createChromeMock(options = {}) {
+  const syncArea = createStorageArea(options.sync ?? {});
+  const localArea = createStorageArea(options.local ?? {});
+  const tabsOnActivated = createEvent();
+  const tabsOnUpdated = createEvent();
+  const storageOnChanged = createEvent();
+
+  const chrome = {
+    runtime: {
+      lastError: null,
+      getManifest: vi.fn(() => ({
+        version: options.manifestVersion || "9.9.9"
+      })),
+      getURL: vi.fn((url) => "moz-extension://speeder/" + url)
+    },
+    storage: {
+      sync: syncArea,
+      local: localArea,
+      onChanged: storageOnChanged
+    },
+    tabs: {
+      query: vi.fn((queryInfo, callback) => {
+        callback(
+          options.tabs ??
+            [
+              {
+                id: 1,
+                active: true,
+                url: "https://example.com/watch"
+              }
+            ]
+        );
+      }),
+      sendMessage: vi.fn((tabId, message, callback) => {
+        if (callback) {
+          callback(options.sendMessageResponse ?? { speed: 1.25 });
+        }
+      }),
+      executeScript: vi.fn((tabId, details, callback) => {
+        if (callback) {
+          callback(
+            options.executeScriptResponse ?? [
+              { speed: 1.25, preferred: true }
+            ]
+          );
+        }
+      }),
+      create: vi.fn(),
+      onActivated: tabsOnActivated,
+      onUpdated: tabsOnUpdated
+    },
+    browserAction: {
+      setIcon: vi.fn()
+    }
+  };
+
+  return chrome;
+}
diff --git a/tests/helpers/extension-test-utils.js b/tests/helpers/extension-test-utils.js
new file mode 100644
index 0000000..dba6668
--- /dev/null
+++ b/tests/helpers/extension-test-utils.js
@@ -0,0 +1,240 @@
+const fs = require("fs");
+const path = require("path");
+const { vi } = require("vitest");
+
+const ROOT = path.resolve(__dirname, "..", "..");
+
+function clone(value) {
+  if (value === undefined) return undefined;
+  return JSON.parse(JSON.stringify(value));
+}
+
+function workspacePath(relPath) {
+  return path.join(ROOT, relPath);
+}
+
+function readWorkspaceFile(relPath) {
+  return fs.readFileSync(workspacePath(relPath), "utf8");
+}
+
+function loadHtmlFile(relPath) {
+  document.open();
+  document.write(readWorkspaceFile(relPath));
+  document.close();
+}
+
+function loadHtmlString(html) {
+  document.open();
+  document.write(html);
+  document.close();
+}
+
+function evaluateScript(relPath) {
+  const source = readWorkspaceFile(relPath);
+  window.eval(
+    `${source}\n//# sourceURL=${workspacePath(relPath).replace(/\\/g, "/")}`
+  );
+}
+
+function fireDOMContentLoaded() {
+  document.dispatchEvent(
+    new window.Event("DOMContentLoaded", {
+      bubbles: true,
+      cancelable: true
+    })
+  );
+}
+
+async function flushAsyncWork(turns) {
+  const count = turns || 2;
+  for (let i = 0; i < count; i += 1) {
+    await Promise.resolve();
+    await new Promise((resolve) => setTimeout(resolve, 0));
+  }
+}
+
+function pickStorageValues(data, keys) {
+  if (keys == null) return clone(data || {});
+
+  if (typeof keys === "string") {
+    return { [keys]: clone(data ? data[keys] : undefined) };
+  }
+
+  if (Array.isArray(keys)) {
+    const result = {};
+    keys.forEach((key) => {
+      result[key] = clone(data ? data[key] : undefined);
+    });
+    return result;
+  }
+
+  if (typeof keys === "object") {
+    const result = clone(keys) || {};
+    Object.keys(keys).forEach((key) => {
+      if (data && Object.prototype.hasOwnProperty.call(data, key)) {
+        result[key] = clone(data[key]);
+      }
+    });
+    return result;
+  }
+
+  return {};
+}
+
+function createChromeEvent() {
+  const listeners = [];
+  return {
+    addListener(listener) {
+      listeners.push(listener);
+    },
+    removeListener(listener) {
+      const index = listeners.indexOf(listener);
+      if (index >= 0) {
+        listeners.splice(index, 1);
+      }
+    },
+    hasListener(listener) {
+      return listeners.includes(listener);
+    },
+    emit(...args) {
+      listeners.slice().forEach((listener) => listener(...args));
+    },
+    listeners
+  };
+}
+
+function createStorageArea(areaName, initialData, onChangedEvent) {
+  let data = clone(initialData) || {};
+
+  function emitChanges(changes) {
+    if (changes && Object.keys(changes).length > 0) {
+      onChangedEvent.emit(changes, areaName);
+    }
+  }
+
+  return {
+    get: vi.fn((keys, callback) => {
+      if (callback) callback(pickStorageValues(data, keys));
+    }),
+    set: vi.fn((items, callback) => {
+      const nextItems = items || {};
+      const changes = {};
+
+      Object.keys(nextItems).forEach((key) => {
+        const oldValue = clone(data[key]);
+        const newValue = clone(nextItems[key]);
+        data[key] = newValue;
+        changes[key] = { oldValue, newValue };
+      });
+
+      emitChanges(changes);
+      if (callback) callback();
+    }),
+    remove: vi.fn((keys, callback) => {
+      const list = Array.isArray(keys) ? keys : [keys];
+      const changes = {};
+
+      list.forEach((key) => {
+        if (Object.prototype.hasOwnProperty.call(data, key)) {
+          changes[key] = {
+            oldValue: clone(data[key]),
+            newValue: undefined
+          };
+          delete data[key];
+        }
+      });
+
+      emitChanges(changes);
+      if (callback) callback();
+    }),
+    clear: vi.fn((callback) => {
+      const changes = {};
+      Object.keys(data).forEach((key) => {
+        changes[key] = {
+          oldValue: clone(data[key]),
+          newValue: undefined
+        };
+      });
+      data = {};
+      emitChanges(changes);
+      if (callback) callback();
+    }),
+    _dump() {
+      return clone(data);
+    }
+  };
+}
+
+function createChromeMock(options) {
+  const config = options || {};
+  const storageOnChanged = createChromeEvent();
+  const tabsOnActivated = createChromeEvent();
+  const tabsOnUpdated = createChromeEvent();
+  const runtimeOnMessage = createChromeEvent();
+
+  const chrome = {
+    runtime: {
+      lastError: null,
+      getManifest: vi.fn(() => clone(config.manifest) || { version: "0.0.0-test" }),
+      getURL: vi.fn((relPath) => `moz-extension://${relPath}`),
+      onMessage: runtimeOnMessage
+    },
+    browserAction: {
+      setIcon: vi.fn()
+    },
+    tabs: {
+      query: vi.fn((queryInfo, callback) => {
+        const tabs = clone(config.tabsQueryResult) || [
+          { id: 1, active: true, url: "https://example.com/" }
+        ];
+        if (callback) callback(tabs);
+      }),
+      sendMessage: vi.fn((tabId, message, callback) => {
+        if (callback) callback(null);
+      }),
+      executeScript: vi.fn((tabId, details, callback) => {
+        if (callback) callback([]);
+      }),
+      create: vi.fn(),
+      onActivated: tabsOnActivated,
+      onUpdated: tabsOnUpdated
+    },
+    storage: {
+      onChanged: storageOnChanged,
+      sync: null,
+      local: null
+    }
+  };
+
+  chrome.storage.sync = createStorageArea(
+    "sync",
+    config.syncData,
+    storageOnChanged
+  );
+  chrome.storage.local = createStorageArea(
+    "local",
+    config.localData,
+    storageOnChanged
+  );
+
+  return chrome;
+}
+
+function installCommonWindowMocks() {
+  window.open = vi.fn();
+  window.close = vi.fn();
+  window.requestAnimationFrame = vi.fn((callback) => setTimeout(callback, 0));
+  window.cancelAnimationFrame = vi.fn((id) => clearTimeout(id));
+}
+
+module.exports = {
+  createChromeMock,
+  evaluateScript,
+  fireDOMContentLoaded,
+  flushAsyncWork,
+  installCommonWindowMocks,
+  loadHtmlFile,
+  loadHtmlString,
+  readWorkspaceFile,
+  workspacePath
+};
diff --git a/tests/importExport.integration.test.js b/tests/importExport.integration.test.js
new file mode 100644
index 0000000..f934be5
--- /dev/null
+++ b/tests/importExport.integration.test.js
@@ -0,0 +1,224 @@
+import {
+  createChromeMock,
+  flushAsyncWork,
+  loadHtml,
+  loadScript
+} from "./helpers/browser.js";
+
+async function setupImportExport(overrides = {}) {
+  loadHtml("options.html");
+  globalThis.chrome = createChromeMock(overrides);
+  window.chrome = globalThis.chrome;
+  globalThis.restore_options = vi.fn();
+  loadScript("shared/import-export.js");
+  loadScript("importExport.js");
+  await flushAsyncWork();
+  return globalThis.chrome;
+}
+
+describe("import/export flows", () => {
+  it("exports sync and local settings as a JSON download", async () => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date(2026, 3, 4, 8, 9, 10));
+    const chrome = await setupImportExport({
+      sync: { rememberSpeed: true },
+      local: { customButtonIcons: { faster: { slug: "rocket" } } }
+    });
+    const OriginalBlob = globalThis.Blob;
+    globalThis.Blob = class TestBlob {
+      constructor(parts, options) {
+        this.parts = parts;
+        this.options = options;
+      }
+
+      async text() {
+        return this.parts.join("");
+      }
+    };
+
+    let capturedBlob = null;
+    let clickedDownload = null;
+    Object.defineProperty(URL, "createObjectURL", {
+      configurable: true,
+      value: vi.fn((blob) => {
+        capturedBlob = blob;
+        return "blob:test";
+      })
+    });
+    Object.defineProperty(URL, "revokeObjectURL", {
+      configurable: true,
+      value: vi.fn(() => {})
+    });
+    vi.spyOn(HTMLAnchorElement.prototype, "click").mockImplementation(function () {
+      clickedDownload = this.download;
+    });
+
+    document.getElementById("exportSettings").click();
+
+    expect(clickedDownload).toBe("speeder-backup_2026-04-04_08.09.10.json");
+    expect(capturedBlob).not.toBeNull();
+    const blobText = await capturedBlob.text();
+    expect(JSON.parse(blobText)).toEqual({
+      version: "1.1",
+      exportDate: "2026-04-04T12:09:10.000Z",
+      settings: { rememberSpeed: true },
+      localSettings: { customButtonIcons: { faster: { slug: "rocket" } } }
+    });
+    expect(document.getElementById("status").textContent).toBe(
+      "Settings exported successfully"
+    );
+    expect(chrome.storage.sync.get).toHaveBeenCalled();
+    expect(chrome.storage.local.get).toHaveBeenCalled();
+    globalThis.Blob = OriginalBlob;
+  });
+
+  it("imports wrapped backup payloads and refreshes options", async () => {
+    vi.useFakeTimers();
+    const chrome = await setupImportExport();
+
+    const originalCreateElement = document.createElement.bind(document);
+    let createdInput = null;
+    vi.spyOn(document, "createElement").mockImplementation((tagName) => {
+      const el = originalCreateElement(tagName);
+      if (tagName === "input") {
+        createdInput = el;
+        el.click = vi.fn();
+      }
+      return el;
+    });
+
+    globalThis.FileReader = class MockFileReader {
+      readAsText(file) {
+        this.onload({
+          target: {
+            result: file.__text
+          }
+        });
+      }
+    };
+
+    globalThis.importSettings();
+    createdInput.onchange({
+      target: {
+        files: [
+          {
+            __text: JSON.stringify({
+              settings: { rememberSpeed: true },
+              localSettings: { customButtonIcons: { faster: { slug: "rocket" } } }
+            })
+          }
+        ]
+      }
+    });
+
+    expect(chrome.storage.local.set).toHaveBeenCalledWith(
+      { customButtonIcons: { faster: { slug: "rocket" } } },
+      expect.any(Function)
+    );
+    expect(chrome.storage.sync.clear).toHaveBeenCalled();
+    expect(chrome.storage.sync.set).toHaveBeenCalledWith(
+      { rememberSpeed: true },
+      expect.any(Function)
+    );
+    expect(document.getElementById("status").textContent).toBe(
+      "Settings imported successfully. Reloading..."
+    );
+
+    vi.advanceTimersByTime(500);
+    expect(globalThis.restore_options).toHaveBeenCalled();
+  });
+
+  it("clears stale local data when a wrapped backup has empty local settings", async () => {
+    vi.useFakeTimers();
+    const chrome = await setupImportExport({
+      local: {
+        customButtonIcons: { faster: { slug: "rocket" } },
+        lucideTagsCacheV1: { stale: true }
+      }
+    });
+
+    const originalCreateElement = document.createElement.bind(document);
+    let createdInput = null;
+    vi.spyOn(document, "createElement").mockImplementation((tagName) => {
+      const el = originalCreateElement(tagName);
+      if (tagName === "input") {
+        createdInput = el;
+        el.click = vi.fn();
+      }
+      return el;
+    });
+
+    globalThis.FileReader = class MockFileReader {
+      readAsText(file) {
+        this.onload({
+          target: {
+            result: file.__text
+          }
+        });
+      }
+    };
+
+    globalThis.importSettings();
+    createdInput.onchange({
+      target: {
+        files: [
+          {
+            __text: JSON.stringify({
+              settings: { rememberSpeed: true },
+              localSettings: {}
+            })
+          }
+        ]
+      }
+    });
+
+    expect(chrome.storage.local.clear).toHaveBeenCalled();
+    expect(chrome.storage.local.set).not.toHaveBeenCalled();
+    expect(chrome.storage.sync.set).toHaveBeenCalledWith(
+      { rememberSpeed: true },
+      expect.any(Function)
+    );
+  });
+
+  it("shows an error for invalid backup files", async () => {
+    vi.useFakeTimers();
+    const chrome = await setupImportExport();
+
+    const originalCreateElement = document.createElement.bind(document);
+    let createdInput = null;
+    vi.spyOn(document, "createElement").mockImplementation((tagName) => {
+      const el = originalCreateElement(tagName);
+      if (tagName === "input") {
+        createdInput = el;
+        el.click = vi.fn();
+      }
+      return el;
+    });
+
+    globalThis.FileReader = class MockFileReader {
+      readAsText(file) {
+        this.onload({
+          target: {
+            result: file.__text
+          }
+        });
+      }
+    };
+
+    globalThis.importSettings();
+    createdInput.onchange({
+      target: {
+        files: [
+          {
+            __text: JSON.stringify({ enabled: true })
+          }
+        ]
+      }
+    });
+
+    expect(document.getElementById("status").textContent).toBe(
+      "Error: Invalid backup file format"
+    );
+    expect(chrome.storage.sync.set).not.toHaveBeenCalled();
+  });
+});
diff --git a/tests/importExport.spec.js b/tests/importExport.spec.js
new file mode 100644
index 0000000..8694b31
--- /dev/null
+++ b/tests/importExport.spec.js
@@ -0,0 +1,189 @@
+const { afterEach, beforeEach, describe, expect, it, vi } = require("vitest");
+const {
+  createChromeMock,
+  evaluateScript,
+  flushAsyncWork,
+  installCommonWindowMocks,
+  loadHtmlString
+} = require("./helpers/extension-test-utils");
+
+function bootImportExport(options) {
+  const config = options || {};
+
+  loadHtmlString(`<!doctype html><html><body>
+    <button id="exportSettings">Export</button>
+    <button id="importSettings">Import</button>
+    <div id="status"></div>
+  </body></html>`);
+
+  installCommonWindowMocks();
+
+  const chrome = createChromeMock({
+    syncData: config.syncData,
+    localData: config.localData
+  });
+
+  global.chrome = chrome;
+  window.chrome = chrome;
+
+  const createObjectURL = vi.fn(() => "blob:test");
+  const revokeObjectURL = vi.fn();
+  vi.stubGlobal("URL", {
+    createObjectURL,
+    revokeObjectURL
+  });
+
+  evaluateScript("importExport.js");
+  return { chrome, createObjectURL, revokeObjectURL };
+}
+
+describe("importExport.js", () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+    vi.unstubAllGlobals();
+    delete global.chrome;
+  });
+
+  it("generates timestamped backup filenames", () => {
+    vi.setSystemTime(new Date("2026-04-04T13:14:15Z"));
+    bootImportExport();
+
+    expect(window.generateBackupFilename()).toBe(
+      "speeder-backup_2026-04-04_13.14.15.json"
+    );
+  });
+
+  it("exports sync and local settings into a downloadable backup", async () => {
+    const clickSpy = vi
+      .spyOn(window.HTMLAnchorElement.prototype, "click")
+      .mockImplementation(() => {});
+    const { createObjectURL, revokeObjectURL } = bootImportExport({
+      syncData: {
+        rememberSpeed: true,
+        keyBindings: [{ action: "faster", code: "KeyD", value: 0.1 }]
+      },
+      localData: {
+        customButtonIcons: {
+          faster: { slug: "rocket", svg: "<svg></svg>" }
+        }
+      }
+    });
+
+    document.querySelector("#exportSettings").click();
+    await flushAsyncWork();
+
+    expect(createObjectURL).toHaveBeenCalledTimes(1);
+    const blob = createObjectURL.mock.calls[0][0];
+    const backup = JSON.parse(await blob.text());
+
+    expect(backup.settings.rememberSpeed).toBe(true);
+    expect(backup.localSettings.customButtonIcons.faster.slug).toBe("rocket");
+    expect(clickSpy).toHaveBeenCalledTimes(1);
+    expect(revokeObjectURL).toHaveBeenCalledWith("blob:test");
+    expect(document.querySelector("#status").textContent).toContain("exported");
+  });
+
+  it("imports wrapped backups, restores local data, and refreshes the options page", async () => {
+    const { chrome } = bootImportExport();
+    window.restore_options = vi.fn();
+
+    const realCreateElement = document.createElement.bind(document);
+    const fakeInput = realCreateElement("input");
+    Object.defineProperty(fakeInput, "files", {
+      configurable: true,
+      value: [
+        {
+          __contents: JSON.stringify({
+            settings: {
+              rememberSpeed: true,
+              enabled: false
+            },
+            localSettings: {
+              customButtonIcons: {
+                faster: { slug: "rocket", svg: "<svg></svg>" }
+              }
+            }
+          })
+        }
+      ]
+    });
+    fakeInput.click = vi.fn(() => {
+      fakeInput.onchange({ target: fakeInput });
+    });
+
+    vi.spyOn(document, "createElement").mockImplementation((tagName) => {
+      if (String(tagName).toLowerCase() === "input") {
+        return fakeInput;
+      }
+      return realCreateElement(tagName);
+    });
+
+    class FakeFileReader {
+      readAsText(file) {
+        this.onload({ target: { result: file.__contents } });
+      }
+    }
+
+    vi.stubGlobal("FileReader", FakeFileReader);
+
+    document.querySelector("#importSettings").click();
+    await flushAsyncWork();
+
+    expect(chrome.storage.local.set).toHaveBeenCalledWith(
+      {
+        customButtonIcons: {
+          faster: { slug: "rocket", svg: "<svg></svg>" }
+        }
+      },
+      expect.any(Function)
+    );
+    expect(chrome.storage.sync.clear).toHaveBeenCalled();
+    expect(chrome.storage.sync.set).toHaveBeenCalledWith(
+      { rememberSpeed: true, enabled: false },
+      expect.any(Function)
+    );
+
+    vi.advanceTimersByTime(500);
+    expect(window.restore_options).toHaveBeenCalled();
+  });
+
+  it("shows an error for malformed backups", async () => {
+    bootImportExport();
+
+    const realCreateElement = document.createElement.bind(document);
+    const fakeInput = realCreateElement("input");
+    Object.defineProperty(fakeInput, "files", {
+      configurable: true,
+      value: [{ __contents: "{bad json" }]
+    });
+    fakeInput.click = vi.fn(() => {
+      fakeInput.onchange({ target: fakeInput });
+    });
+
+    vi.spyOn(document, "createElement").mockImplementation((tagName) => {
+      if (String(tagName).toLowerCase() === "input") {
+        return fakeInput;
+      }
+      return realCreateElement(tagName);
+    });
+
+    class FakeFileReader {
+      readAsText(file) {
+        this.onload({ target: { result: file.__contents } });
+      }
+    }
+
+    vi.stubGlobal("FileReader", FakeFileReader);
+
+    document.querySelector("#importSettings").click();
+    await flushAsyncWork();
+
+    expect(document.querySelector("#status").textContent).toContain(
+      "Failed to parse backup file"
+    );
+  });
+});
diff --git a/tests/inject.spec.js b/tests/inject.spec.js
new file mode 100644
index 0000000..95006f2
--- /dev/null
+++ b/tests/inject.spec.js
@@ -0,0 +1,141 @@
+const { afterEach, describe, expect, it, vi } = require("vitest");
+const {
+  createChromeMock,
+  evaluateScript,
+  flushAsyncWork,
+  loadHtmlString
+} = require("./helpers/extension-test-utils");
+
+function bootInject(options) {
+  const config = options || {};
+
+  loadHtmlString("<!doctype html><html><body></body></html>");
+
+  const chrome = createChromeMock({
+    syncData: config.syncData,
+    localData: config.localData
+  });
+
+  global.chrome = chrome;
+  window.chrome = chrome;
+  window.requestIdleCallback = (callback, opts) =>
+    setTimeout(
+      () =>
+        callback({
+          didTimeout: false,
+          timeRemaining() {
+            return 1;
+          }
+        }),
+      (opts && opts.timeout) || 0
+    );
+  window.cancelIdleCallback = (id) => clearTimeout(id);
+
+  evaluateScript("ui-icons.js");
+  evaluateScript("inject.js");
+
+  return chrome;
+}
+
+describe("inject.js helper logic", () => {
+  afterEach(() => {
+    vi.useRealTimers();
+    vi.unstubAllGlobals();
+    delete global.chrome;
+  });
+
+  it("normalizes bindings from legacy formats", async () => {
+    bootInject();
+    await flushAsyncWork(3);
+
+    expect(
+      window.normalizeStoredBinding({
+        action: "faster",
+        key: "g",
+        value: 1.8,
+        force: false
+      }).code
+    ).toBe("KeyG");
+
+    expect(
+      window.normalizeStoredBinding({
+        action: "pause",
+        code: null,
+        key: null,
+        keyCode: null,
+        value: 0
+      })
+    ).toEqual({
+      action: "pause",
+      code: null,
+      disabled: true,
+      value: 0,
+      force: "false",
+      predefined: false
+    });
+
+    expect(window.defaultKeyBindings({ speedStep: 0.25, rewindTime: 5 })[0]).toEqual(
+      {
+        action: "slower",
+        code: "KeyS",
+        value: 0.25,
+        force: false,
+        predefined: true
+      }
+    );
+  });
+
+  it("clamps controller margins and ignores stale source-specific target speeds", async () => {
+    bootInject();
+    await flushAsyncWork(3);
+
+    expect(window.normalizeControllerMarginPx(250, 0)).toBe(200);
+    expect(window.normalizeControllerMarginPx(-5, 65)).toBe(0);
+    expect(window.normalizeControllerMarginPx("bad", 65)).toBe(65);
+
+    const staleVideo = {
+      currentSrc: "fresh.mp4",
+      vsc: {
+        targetSpeed: 1.75,
+        targetSpeedSourceKey: "old.mp4"
+      }
+    };
+
+    expect(window.getControllerTargetSpeed(staleVideo)).toBeNull();
+
+    window.tc.settings.rememberSpeed = true;
+    window.tc.settings.forceLastSavedSpeed = false;
+    window.tc.settings.lastSpeed = 1.3;
+    window.tc.settings.speeds = { "fresh.mp4": 1.6 };
+
+    expect(window.getRememberedSpeed({ currentSrc: "fresh.mp4" })).toBe(1.6);
+    expect(window.getDesiredSpeed(staleVideo)).toBe(1.6);
+  });
+
+  it("applies site rule overrides and detects disabled sites", async () => {
+    bootInject();
+    await flushAsyncWork(3);
+
+    window.tc.settings.siteRules = [{ pattern: "localhost", enabled: false }];
+    window.captureSiteRuleBase();
+    expect(window.applySiteRuleOverrides()).toBe(true);
+
+    window.resetSettingsFromSiteRuleBase();
+    window.tc.settings.siteRules = [
+      {
+        pattern: "localhost",
+        controllerLocation: "bottom-left",
+        controllerMarginTop: 300,
+        controllerMarginBottom: -10,
+        rememberSpeed: true
+      }
+    ];
+    window.captureSiteRuleBase();
+
+    expect(window.applySiteRuleOverrides()).toBe(false);
+    expect(window.tc.settings.controllerLocation).toBe("bottom-left");
+    expect(window.tc.settings.controllerMarginTop).toBe(200);
+    expect(window.tc.settings.controllerMarginBottom).toBe(0);
+    expect(window.tc.settings.rememberSpeed).toBe(true);
+  });
+});
diff --git a/tests/lucide-client.spec.js b/tests/lucide-client.spec.js
new file mode 100644
index 0000000..b5b439b
--- /dev/null
+++ b/tests/lucide-client.spec.js
@@ -0,0 +1,61 @@
+const { afterEach, describe, expect, it } = require("vitest");
+const {
+  evaluateScript,
+  loadHtmlString
+} = require("./helpers/extension-test-utils");
+
+describe("lucide-client.js", () => {
+  afterEach(() => {
+    document.body.innerHTML = "";
+  });
+
+  it("builds icon URLs and rejects invalid slugs", () => {
+    loadHtmlString("<!doctype html><html><body></body></html>");
+    evaluateScript("ui-icons.js");
+    evaluateScript("lucide-client.js");
+
+    expect(window.lucideIconSvgUrl("alarm-clock")).toContain(
+      "/icons/alarm-clock.svg"
+    );
+    expect(window.lucideIconSvgUrl("bad slug!!")).toBe("");
+    expect(window.lucideTagsJsonUrl()).toContain("/tags.json");
+  });
+
+  it("sanitizes SVG before persisting a Lucide icon", () => {
+    loadHtmlString("<!doctype html><html><body></body></html>");
+    evaluateScript("ui-icons.js");
+    evaluateScript("lucide-client.js");
+
+    const sanitized = window.sanitizeLucideSvg(`
+      <svg width="10" height="10" onclick="evil()">
+        <script>alert(1)</script>
+        <foreignObject>bad</foreignObject>
+        <path d="M0 0h10v10"></path>
+      </svg>
+    `);
+
+    expect(sanitized).toContain("<svg");
+    expect(sanitized).not.toContain("onclick");
+    expect(sanitized).not.toContain("<script");
+    expect(sanitized).not.toContain("foreignObject");
+    expect(sanitized).toContain('width="100%"');
+  });
+
+  it("searches and ranks icon slugs by query", () => {
+    loadHtmlString("<!doctype html><html><body></body></html>");
+    evaluateScript("ui-icons.js");
+    evaluateScript("lucide-client.js");
+
+    const results = window.searchLucideSlugs(
+      {
+        alarm: ["clock", "time"],
+        badge-alert: ["alert", "warning"],
+        calendar: ["date", "time"]
+      },
+      "al",
+      10
+    );
+
+    expect(results).toEqual(["alarm", "badge-alert", "calendar"]);
+  });
+});
diff --git a/tests/options.integration.test.js b/tests/options.integration.test.js
new file mode 100644
index 0000000..4e14f13
--- /dev/null
+++ b/tests/options.integration.test.js
@@ -0,0 +1,140 @@
+import {
+  createChromeMock,
+  flushAsyncWork,
+  loadHtml,
+  loadScript,
+  triggerDomContentLoaded
+} from "./helpers/browser.js";
+
+async function setupOptions(overrides = {}) {
+  loadHtml("options.html");
+  globalThis.chrome = createChromeMock(overrides);
+  window.chrome = globalThis.chrome;
+  globalThis.fetch = vi.fn();
+  loadScript("shared/controller-utils.js");
+  loadScript("shared/key-bindings.js");
+  loadScript("shared/popup-controls.js");
+  loadScript("ui-icons.js");
+  loadScript("lucide-client.js");
+  loadScript("options.js");
+  triggerDomContentLoaded();
+  await flushAsyncWork();
+  return globalThis.chrome;
+}
+
+describe("options page", () => {
+  it("restores stored settings, custom shortcuts, and site rules", async () => {
+    await setupOptions({
+      manifestVersion: "5.1.7.0",
+      sync: {
+        rememberSpeed: true,
+        enabled: false,
+        popupMatchHoverControls: false,
+        popupControllerButtons: ["rewind", "settings", "advance", "advance"],
+        keyBindings: [
+          { action: "display", code: "KeyV", value: 0, predefined: true },
+          { action: "pause", code: "KeyQ", value: 0, predefined: false }
+        ],
+        siteRules: [
+          {
+            pattern: "youtube.com",
+            enabled: true,
+            showPopupControlBar: false,
+            popupControllerButtons: ["advance", "settings", "advance"]
+          }
+        ]
+      }
+    });
+
+    expect(document.getElementById("app-version").textContent).toBe("5.1.7.0");
+    expect(document.getElementById("rememberSpeed").checked).toBe(true);
+    expect(document.getElementById("enabled").checked).toBe(false);
+    expect(document.querySelector('.shortcut-row[data-action="pause"]')).not.toBe(
+      null
+    );
+    expect(document.getElementById("siteRulesContainer").children.length).toBe(
+      1
+    );
+    expect(globalThis.getPopupControlBarOrder()).toEqual(["rewind", "advance"]);
+  });
+
+  it("validates site rule regexes before saving", async () => {
+    const chrome = await setupOptions();
+    chrome.storage.sync.set.mockClear();
+    globalThis.createSiteRule(null);
+    const rule = document.querySelector(".site-rule");
+    rule.querySelector(".site-pattern").value = "/(/";
+
+    globalThis.save_options();
+
+    expect(document.getElementById("status").textContent).toContain(
+      "Invalid site rule regex"
+    );
+    expect(chrome.storage.sync.set).not.toHaveBeenCalled();
+  });
+
+  it("saves normalized settings and sanitized popup/site-rule controls", async () => {
+    const chrome = await setupOptions();
+
+    document.getElementById("rememberSpeed").checked = true;
+    document.getElementById("hideWithControlsTimer").value = "20";
+    document.getElementById("controllerOpacity").value = "0.55";
+    document.getElementById("controllerMarginTop").value = "250";
+    document.getElementById("controllerMarginBottom").value = "-4";
+    document.getElementById("enableSubtitleNudge").checked = true;
+    document.getElementById("subtitleNudgeInterval").value = "5";
+    document.getElementById("popupMatchHoverControls").checked = false;
+    document.getElementById("showPopupControlBar").checked = false;
+
+    globalThis.populatePopupControlBarEditor([
+      "rewind",
+      "settings",
+      "faster",
+      "faster"
+    ]);
+
+    globalThis.createSiteRule(null);
+    const rule = document.querySelector(".site-rule");
+    rule.querySelector(".site-pattern").value = "youtube.com";
+    rule.querySelector(".override-playback").checked = true;
+    rule.querySelector(".site-rememberSpeed").checked = true;
+    rule.querySelector(".override-popup-controlbar").checked = true;
+    rule.querySelector(".site-showPopupControlBar").checked = false;
+    globalThis.populateControlBarZones(
+      rule.querySelector(".site-popup-cb-active"),
+      rule.querySelector(".site-popup-cb-available"),
+      ["advance", "settings", "advance"],
+      function (id) {
+        return id !== "settings";
+      }
+    );
+
+    globalThis.save_options();
+
+    expect(chrome.storage.sync.remove).toHaveBeenCalled();
+    const savedSettings =
+      chrome.storage.sync.set.mock.calls[
+        chrome.storage.sync.set.mock.calls.length - 1
+      ][0];
+
+    expect(savedSettings.rememberSpeed).toBe(true);
+    expect(savedSettings.hideWithControlsTimer).toBe(15);
+    expect(savedSettings.controllerOpacity).toBe(0.55);
+    expect(savedSettings.controllerMarginTop).toBe(200);
+    expect(savedSettings.controllerMarginBottom).toBe(0);
+    expect(savedSettings.subtitleNudgeInterval).toBe(10);
+    expect(savedSettings.showPopupControlBar).toBe(false);
+    expect(savedSettings.popupMatchHoverControls).toBe(false);
+    expect(savedSettings.popupControllerButtons).toEqual(["rewind", "faster"]);
+    expect(savedSettings.siteRules).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({
+          pattern: "youtube.com",
+          rememberSpeed: true,
+          showPopupControlBar: false,
+          popupControllerButtons: ["advance"]
+        })
+      ])
+    );
+  });
+});
diff --git a/tests/options.spec.js b/tests/options.spec.js
new file mode 100644
index 0000000..766d2a3
--- /dev/null
+++ b/tests/options.spec.js
@@ -0,0 +1,230 @@
+const { afterEach, beforeEach, describe, expect, it, vi } = require("vitest");
+const {
+  createChromeMock,
+  evaluateScript,
+  fireDOMContentLoaded,
+  flushAsyncWork,
+  installCommonWindowMocks,
+  loadHtmlFile
+} = require("./helpers/extension-test-utils");
+
+function bootOptions(options) {
+  const config = options || {};
+
+  loadHtmlFile("options.html");
+  installCommonWindowMocks();
+
+  const chrome = createChromeMock({
+    manifest: { version: "5.1.7.0" },
+    syncData: config.syncData,
+    localData: config.localData
+  });
+
+  global.chrome = chrome;
+  window.chrome = chrome;
+  global.fetch = vi.fn(() =>
+    Promise.resolve({
+      ok: true,
+      json: () => Promise.resolve({}),
+      text: () => Promise.resolve("<svg></svg>")
+    })
+  );
+  window.fetch = global.fetch;
+
+  evaluateScript("ui-icons.js");
+  evaluateScript("lucide-client.js");
+  evaluateScript("options.js");
+  fireDOMContentLoaded();
+
+  return chrome;
+}
+
+describe("options.js", () => {
+  afterEach(() => {
+    vi.useRealTimers();
+    vi.unstubAllGlobals();
+    delete global.chrome;
+    delete global.fetch;
+  });
+
+  it("restores saved settings, bindings, site rules, and popup bar order", async () => {
+    bootOptions({
+      syncData: {
+        rememberSpeed: true,
+        forceLastSavedSpeed: true,
+        controllerLocation: "middle-right",
+        controllerOpacity: 0.75,
+        controllerMarginTop: 22,
+        controllerMarginBottom: 14,
+        popupMatchHoverControls: false,
+        controllerButtons: ["rewind", "fast", "display"],
+        popupControllerButtons: ["advance", "settings", "rewind", "advance"],
+        keyBindings: [
+          { action: "display", code: "KeyV", value: 0, predefined: true },
+          { action: "pause", code: "KeyQ", value: 0, predefined: false }
+        ],
+        siteRules: [
+          {
+            pattern: "youtube.com",
+            enabled: false,
+            controllerMarginTop: 12,
+            popupControllerButtons: ["advance", "settings", "rewind"]
+          }
+        ]
+      }
+    });
+
+    await flushAsyncWork(3);
+
+    expect(document.getElementById("app-version").textContent).toBe("5.1.7.0");
+    expect(document.getElementById("rememberSpeed").checked).toBe(true);
+    expect(document.getElementById("forceLastSavedSpeed").checked).toBe(true);
+    expect(document.getElementById("controllerLocation").value).toBe(
+      "middle-right"
+    );
+    expect(document.getElementById("controllerOpacity").value).toBe("0.75");
+    expect(document.getElementById("controllerMarginTop").value).toBe("22");
+    expect(document.getElementById("popupMatchHoverControls").checked).toBe(false);
+    expect(
+      document.getElementById("popupCbEditorWrap").classList.contains(
+        "cb-editor-disabled"
+      )
+    ).toBe(false);
+
+    const popupButtons = Array.from(
+      document.querySelectorAll("#popupControlBarActive .cb-block")
+    ).map((block) => block.dataset.buttonId);
+    expect(popupButtons).toEqual(["advance", "rewind"]);
+
+    expect(
+      document.querySelector('.shortcut-row.customs[data-action="pause"]')
+    ).not.toBeNull();
+    expect(document.querySelectorAll(".site-rule")).toHaveLength(1);
+    expect(document.querySelector(".site-rule .site-enabled").checked).toBe(false);
+  });
+
+  it("saves normalized settings and site rule overrides", async () => {
+    const chrome = bootOptions();
+    await flushAsyncWork(3);
+
+    document.getElementById("rememberSpeed").checked = true;
+    document.getElementById("hideWithControlsTimer").value = "99";
+    document.getElementById("controllerLocation").value = "bottom-left";
+    document.getElementById("controllerOpacity").value = "0.65";
+    document.getElementById("controllerMarginTop").value = "250";
+    document.getElementById("controllerMarginBottom").value = "-5";
+    document.getElementById("popupMatchHoverControls").checked = false;
+    document.getElementById("showPopupControlBar").checked = true;
+
+    window.populatePopupControlBarEditor(["advance", "settings", "rewind"]);
+
+    window.createSiteRule({ pattern: "youtube.com" });
+    const ruleEl = document.querySelector(".site-rule");
+    ruleEl.querySelector(".override-placement").checked = true;
+    ruleEl.querySelector(".site-controllerLocation").value = "top-right";
+    ruleEl.querySelector(".site-controllerMarginTop").value = "300";
+    ruleEl.querySelector(".site-controllerMarginBottom").value = "-10";
+
+    ruleEl.querySelector(".override-autohide").checked = true;
+    ruleEl.querySelector(".site-hideWithControls").checked = true;
+    ruleEl.querySelector(".site-hideWithControlsTimer").value = "0";
+
+    ruleEl.querySelector(".override-popup-controlbar").checked = true;
+    ruleEl.querySelector(".site-showPopupControlBar").checked = false;
+    window.populateControlBarZones(
+      ruleEl.querySelector(".site-popup-cb-active"),
+      ruleEl.querySelector(".site-popup-cb-available"),
+      ["advance", "settings", "rewind"],
+      function (id) {
+        return id !== "settings";
+      }
+    );
+
+    window.save_options();
+
+    expect(chrome.storage.sync.remove).toHaveBeenCalledWith(
+      [
+        "resetSpeed",
+        "speedStep",
+        "fastSpeed",
+        "rewindTime",
+        "advanceTime",
+        "resetKeyCode",
+        "slowerKeyCode",
+        "fasterKeyCode",
+        "rewindKeyCode",
+        "advanceKeyCode",
+        "fastKeyCode",
+        "blacklist"
+      ],
+      expect.any(Function)
+    );
+
+    const savedSettings = chrome.storage.sync.set.mock.calls.at(-1)[0];
+    expect(savedSettings.rememberSpeed).toBe(true);
+    expect(savedSettings.hideWithControlsTimer).toBe(15);
+    expect(savedSettings.controllerLocation).toBe("bottom-left");
+    expect(savedSettings.controllerMarginTop).toBe(200);
+    expect(savedSettings.controllerMarginBottom).toBe(0);
+    expect(savedSettings.popupControllerButtons).toEqual(["advance", "rewind"]);
+    expect(savedSettings.siteRules).toEqual([
+      {
+        pattern: "youtube.com",
+        enabled: true,
+        controllerLocation: "top-right",
+        controllerMarginTop: 200,
+        controllerMarginBottom: 0,
+        hideWithControls: true,
+        hideWithControlsTimer: 0.1,
+        showPopupControlBar: false,
+        popupControllerButtons: ["advance", "rewind"]
+      }
+    ]);
+  });
+
+  it("blocks save when a site rule regex is invalid", async () => {
+    const chrome = bootOptions();
+    await flushAsyncWork(3);
+
+    window.createSiteRule({ pattern: "/[abc/" });
+    window.save_options();
+
+    expect(document.getElementById("status").textContent).toContain(
+      "Invalid site rule regex"
+    );
+    expect(chrome.storage.sync.set).not.toHaveBeenCalled();
+  });
+
+  it("adds shortcuts from the selector and records key input states", async () => {
+    bootOptions();
+    await flushAsyncWork(3);
+
+    const selector = document.getElementById("addShortcutSelector");
+    selector.value = "pause";
+    selector.dispatchEvent(new window.Event("change", { bubbles: true }));
+
+    const row = document.querySelector('.shortcut-row.customs[data-action="pause"]');
+    expect(row).not.toBeNull();
+
+    const keyInput = row.querySelector(".customKey");
+    keyInput.dispatchEvent(
+      new window.KeyboardEvent("keydown", {
+        key: "q",
+        code: "KeyQ",
+        bubbles: true
+      })
+    );
+    expect(keyInput.vscBinding.code).toBe("KeyQ");
+    expect(keyInput.value).toBe("Q");
+
+    keyInput.dispatchEvent(
+      new window.KeyboardEvent("keydown", {
+        key: "Escape",
+        code: "Escape",
+        bubbles: true
+      })
+    );
+    expect(keyInput.vscBinding.disabled).toBe(true);
+    expect(selector.disabled).toBe(false);
+  });
+});
diff --git a/tests/popup.integration.test.js b/tests/popup.integration.test.js
new file mode 100644
index 0000000..9c79aa9
--- /dev/null
+++ b/tests/popup.integration.test.js
@@ -0,0 +1,121 @@
+import {
+  createChromeMock,
+  flushAsyncWork,
+  loadHtml,
+  loadScript,
+  triggerDomContentLoaded
+} from "./helpers/browser.js";
+
+async function setupPopup(overrides = {}) {
+  loadHtml("popup.html");
+  globalThis.chrome = createChromeMock(overrides);
+  window.chrome = globalThis.chrome;
+  loadScript("shared/site-rules.js");
+  loadScript("shared/popup-controls.js");
+  loadScript("ui-icons.js");
+  loadScript("popup.js");
+  triggerDomContentLoaded();
+  await flushAsyncWork();
+  return globalThis.chrome;
+}
+
+describe("popup UI", () => {
+  it("renders version, builds controls, and prefers the active frame speed", async () => {
+    await setupPopup({
+      manifestVersion: "5.1.7.0",
+      executeScriptResponse: [
+        { speed: 1.1, preferred: false },
+        { speed: 1.75, preferred: true }
+      ]
+    });
+
+    expect(document.getElementById("app-version").innerText).toBe("5.1.7.0");
+    expect(document.getElementById("popupSpeed").textContent).toBe("1.75");
+    expect(
+      document.querySelectorAll("#popupControlBar button").length
+    ).toBeGreaterThan(0);
+  });
+
+  it("shows disabled state for a matching site rule", async () => {
+    await setupPopup({
+      sync: {
+        enabled: true,
+        siteRules: [{ pattern: "example.com", enabled: false }]
+      }
+    });
+
+    expect(document.getElementById("status").innerText).toBe(
+      "Speeder is disabled for this site."
+    );
+    expect(document.getElementById("popupSpeed").textContent).toBe("1.00");
+    expect(document.getElementById("popupControlBar").style.display).toBe(
+      "none"
+    );
+  });
+
+  it("toggles enabled state and updates the browser action icons", async () => {
+    const chrome = await setupPopup();
+    chrome.storage.sync.set.mockClear();
+    chrome.browserAction.setIcon.mockClear();
+
+    document.getElementById("disable").click();
+
+    expect(chrome.storage.sync.set).toHaveBeenCalledWith(
+      { enabled: false },
+      expect.any(Function)
+    );
+    expect(document.getElementById("enable").classList.contains("hide")).toBe(
+      false
+    );
+    expect(chrome.browserAction.setIcon).toHaveBeenCalledWith({
+      path: {
+        19: "icons/icon19_disabled.png",
+        38: "icons/icon38_disabled.png",
+        48: "icons/icon48_disabled.png"
+      }
+    });
+  });
+
+  it("handles refresh responses for unsupported and successful pages", async () => {
+    vi.useFakeTimers();
+    const chrome = await setupPopup();
+    let response = null;
+    chrome.tabs.sendMessage.mockImplementation((tabId, message, callback) => {
+      if (message.action === "rescan_page") {
+        callback(response);
+        return;
+      }
+      callback({ speed: 1.25 });
+    });
+
+    document.getElementById("refresh").click();
+    expect(document.getElementById("status").innerText).toBe(
+      "Cannot run on this page."
+    );
+
+    response = { status: "complete" };
+    document.getElementById("refresh").click();
+    expect(document.getElementById("status").innerText).toBe(
+      "Scan complete. Closing..."
+    );
+    vi.advanceTimersByTime(500);
+    expect(window.close).toHaveBeenCalled();
+  });
+
+  it("dispatches popup control bar actions back to the active tab", async () => {
+    const chrome = await setupPopup();
+    chrome.tabs.sendMessage.mockClear();
+    chrome.tabs.executeScript.mockClear();
+
+    document.querySelector("#popupControlBar button").click();
+
+    expect(chrome.tabs.sendMessage).toHaveBeenCalledWith(
+      1,
+      expect.objectContaining({
+        action: "run_action"
+      }),
+      expect.any(Function)
+    );
+    expect(chrome.tabs.executeScript).toHaveBeenCalled();
+  });
+});
diff --git a/tests/popup.spec.js b/tests/popup.spec.js
new file mode 100644
index 0000000..1d7b0d1
--- /dev/null
+++ b/tests/popup.spec.js
@@ -0,0 +1,173 @@
+const { afterEach, beforeEach, describe, expect, it, vi } = require("vitest");
+const {
+  createChromeMock,
+  evaluateScript,
+  fireDOMContentLoaded,
+  flushAsyncWork,
+  installCommonWindowMocks,
+  loadHtmlFile
+} = require("./helpers/extension-test-utils");
+
+function bootPopup(options) {
+  const config = options || {};
+
+  loadHtmlFile("popup.html");
+  installCommonWindowMocks();
+
+  const chrome = createChromeMock({
+    manifest: { version: "9.9.9-test" },
+    syncData: config.syncData,
+    localData: config.localData,
+    tabsQueryResult: [
+      config.activeTab || { id: 99, active: true, url: "https://example.com/" }
+    ]
+  });
+
+  chrome.tabs.executeScript.mockImplementation(
+    config.executeScriptImpl ||
+      ((tabId, details, callback) => {
+        if (callback) callback([{ speed: 1.0, preferred: true }]);
+      })
+  );
+  chrome.tabs.sendMessage.mockImplementation(
+    config.sendMessageImpl ||
+      ((tabId, message, callback) => {
+        if (message.action === "get_speed") {
+          callback({ speed: 1.0 });
+          return;
+        }
+        if (message.action === "rescan_page") {
+          callback({ status: "complete" });
+          return;
+        }
+        callback({ speed: 1.0 });
+      })
+  );
+
+  global.chrome = chrome;
+  window.chrome = chrome;
+
+  evaluateScript("ui-icons.js");
+  evaluateScript("popup.js");
+  fireDOMContentLoaded();
+
+  return chrome;
+}
+
+describe("popup.js", () => {
+  afterEach(() => {
+    vi.useRealTimers();
+    vi.unstubAllGlobals();
+    delete global.chrome;
+  });
+
+  it("renders the popup disabled state when a site rule disables Speeder", async () => {
+    bootPopup({
+      syncData: {
+        enabled: true,
+        siteRules: [
+          {
+            pattern: "youtube.com",
+            enabled: false
+          }
+        ]
+      },
+      activeTab: {
+        id: 10,
+        active: true,
+        url: "https://www.youtube.com/watch?v=abc123"
+      }
+    });
+
+    await flushAsyncWork();
+
+    expect(document.querySelector("#app-version").textContent).toBe("9.9.9-test");
+    expect(document.querySelector("#status").textContent).toContain(
+      "disabled for this site"
+    );
+    expect(document.querySelector("#popupSpeed").textContent).toBe("1.00");
+    expect(document.querySelector("#popupControlBar").style.display).toBe("none");
+  });
+
+  it("builds sanitized popup buttons and refreshes speed after an action", async () => {
+    const chrome = bootPopup({
+      syncData: {
+        enabled: true,
+        controllerButtons: ["faster", "settings", "rewind", "faster"],
+        popupMatchHoverControls: true
+      }
+    });
+
+    chrome.tabs.executeScript
+      .mockImplementationOnce((tabId, details, callback) => {
+        callback([
+          { speed: 1.25, preferred: false },
+          { speed: 1.5, preferred: true }
+        ]);
+      })
+      .mockImplementationOnce((tabId, details, callback) => {
+        callback([{ speed: 1.75, preferred: true }]);
+      });
+
+    chrome.tabs.sendMessage.mockImplementation((tabId, message, callback) => {
+      if (message.action === "run_action") {
+        callback({ speed: 1.75 });
+        return;
+      }
+      callback({ speed: 1.0 });
+    });
+
+    document.dispatchEvent(new window.Event("DOMContentLoaded"));
+    await flushAsyncWork();
+
+    const buttons = Array.from(
+      document.querySelectorAll("#popupControlBar button[data-action]")
+    ).map((button) => button.dataset.action);
+    expect(buttons).toEqual(["faster", "rewind"]);
+    expect(document.querySelector("#popupSpeed").textContent).toBe("1.50");
+
+    document.querySelector('#popupControlBar button[data-action="faster"]').click();
+    await flushAsyncWork();
+
+    expect(chrome.tabs.sendMessage).toHaveBeenCalledWith(
+      99,
+      { action: "run_action", actionName: "faster" },
+      expect.any(Function)
+    );
+    expect(document.querySelector("#popupSpeed").textContent).toBe("1.75");
+  });
+
+  it("toggles enablement and closes after a successful refresh", async () => {
+    vi.useFakeTimers();
+
+    const chrome = bootPopup({
+      syncData: {
+        enabled: false
+      }
+    });
+
+    await flushAsyncWork();
+
+    expect(document.querySelector("#enable").classList.contains("hide")).toBe(false);
+    expect(document.querySelector("#disable").classList.contains("hide")).toBe(true);
+
+    document.querySelector("#enable").click();
+    expect(chrome.storage.sync.set).toHaveBeenCalledWith(
+      { enabled: true },
+      expect.any(Function)
+    );
+    expect(chrome.browserAction.setIcon).toHaveBeenCalledWith({
+      path: {
+        19: "icons/icon19.png",
+        38: "icons/icon38.png",
+        48: "icons/icon48.png"
+      }
+    });
+
+    document.querySelector("#refresh").click();
+    expect(document.querySelector("#status").textContent).toContain("Closing");
+
+    vi.advanceTimersByTime(500);
+    expect(window.close).toHaveBeenCalled();
+  });
+});
diff --git a/tests/setup.js b/tests/setup.js
new file mode 100644
index 0000000..b544fb8
--- /dev/null
+++ b/tests/setup.js
@@ -0,0 +1,25 @@
+import { afterEach, beforeEach, vi } from "vitest";
+
+beforeEach(() => {
+  vi.restoreAllMocks();
+  vi.unstubAllGlobals();
+
+  if (typeof window !== "undefined") {
+    window.open = vi.fn();
+    window.close = vi.fn();
+  }
+
+  globalThis.requestAnimationFrame = (callback) => setTimeout(callback, 0);
+  globalThis.cancelAnimationFrame = (id) => clearTimeout(id);
+});
+
+afterEach(() => {
+  vi.useRealTimers();
+  delete globalThis.SpeederShared;
+  delete globalThis.restore_options;
+  if (typeof document !== "undefined") {
+    document.head.innerHTML = "";
+    document.body.innerHTML = "";
+  }
+  delete globalThis.chrome;
+});
diff --git a/tests/shared.test.js b/tests/shared.test.js
new file mode 100644
index 0000000..1d108c9
--- /dev/null
+++ b/tests/shared.test.js
@@ -0,0 +1,145 @@
+import controllerUtils from "../shared/controller-utils.js";
+import importExportUtils from "../shared/import-export.js";
+import keyBindingUtils from "../shared/key-bindings.js";
+import popupControls from "../shared/popup-controls.js";
+import siteRules from "../shared/site-rules.js";
+
+describe("shared helpers", () => {
+  it("matches site rules and skips invalid regex patterns", () => {
+    const literalRule = { pattern: "example.com/watch" };
+    const regexRule = { pattern: "/youtube\\.com\\/watch/i" };
+
+    expect(
+      siteRules.matchSiteRule("https://example.com/watch?v=1", [literalRule])
+    ).toBe(literalRule);
+    expect(
+      siteRules.matchSiteRule("https://www.youtube.com/watch?v=2", [regexRule])
+    ).toBe(regexRule);
+    expect(
+      siteRules.matchSiteRule("https://www.youtube.com/shorts/3", [
+        { pattern: "/(/" },
+        regexRule
+      ])
+    ).toBeNull();
+    expect(siteRules.isSiteRuleDisabled({ enabled: false })).toBe(true);
+  });
+
+  it("sanitizes and resolves popup button orders", () => {
+    const controllerButtonDefs = {
+      rewind: {},
+      faster: {},
+      advance: {},
+      display: {},
+      settings: {}
+    };
+
+    expect(
+      popupControls.sanitizeButtonOrder(
+        ["rewind", "settings", "rewind", "faster", "missing"],
+        controllerButtonDefs,
+        new Set(["settings"])
+      )
+    ).toEqual(["rewind", "faster"]);
+
+    expect(
+      popupControls.resolvePopupButtons(
+        {
+          popupMatchHoverControls: true,
+          controllerButtons: ["advance", "display"],
+          popupControllerButtons: ["rewind"]
+        },
+        { controllerButtons: ["faster", "advance"] },
+        {
+          controllerButtonDefs,
+          defaultButtons: ["rewind", "display"],
+          excludedIds: ["settings"]
+        }
+      )
+    ).toEqual(["faster", "advance"]);
+
+    expect(
+      popupControls.resolvePopupButtons(
+        {
+          popupMatchHoverControls: false,
+          popupControllerButtons: ["rewind", "display"]
+        },
+        { popupControllerButtons: ["advance", "settings", "advance"] },
+        {
+          controllerButtonDefs,
+          defaultButtons: ["rewind", "display"],
+          excludedIds: ["settings"]
+        }
+      )
+    ).toEqual(["advance"]);
+  });
+
+  it("normalizes controller locations and margins", () => {
+    expect(controllerUtils.normalizeControllerLocation("top-right")).toBe(
+      "top-right"
+    );
+    expect(controllerUtils.normalizeControllerLocation("bogus")).toBe(
+      controllerUtils.defaultControllerLocation
+    );
+    expect(controllerUtils.clampControllerMarginPx(300, 65)).toBe(200);
+    expect(controllerUtils.clampControllerMarginPx(-5, 65)).toBe(0);
+    expect(controllerUtils.getNextControllerLocation("top-left")).toBe(
+      "top-center"
+    );
+  });
+
+  it("infers key binding codes from legacy formats", () => {
+    expect(keyBindingUtils.normalizeBindingKey("a")).toBe("A");
+    expect(keyBindingUtils.normalizeBindingKey("Esc")).toBe("Escape");
+    expect(keyBindingUtils.legacyBindingKeyToCode(" ")).toBe("Space");
+    expect(keyBindingUtils.legacyKeyCodeToCode(90)).toBe("KeyZ");
+    expect(keyBindingUtils.inferBindingCode({ key: "x" }, null)).toBe("KeyX");
+    expect(keyBindingUtils.inferBindingCode({ keyCode: 107 }, null)).toBe(
+      "NumpadAdd"
+    );
+    expect(keyBindingUtils.getLegacyKeyCode({ key: 65 })).toBe(65);
+  });
+
+  it("builds and parses import/export payloads", () => {
+    expect(
+      importExportUtils.generateBackupFilename(new Date(2026, 3, 4, 8, 9, 10))
+    ).toBe("speeder-backup_2026-04-04_08.09.10.json");
+
+    expect(
+      importExportUtils.buildBackupPayload(
+        { rememberSpeed: true },
+        { customButtonIcons: {} },
+        "2026-04-04T08:09:10Z"
+      )
+    ).toEqual({
+      version: "1.1",
+      exportDate: "2026-04-04T08:09:10.000Z",
+      settings: { rememberSpeed: true },
+      localSettings: { customButtonIcons: {} }
+    });
+
+    expect(
+      importExportUtils.extractImportSettings({
+        settings: { rememberSpeed: true },
+        localSettings: { customButtonIcons: {} }
+      })
+    ).toEqual({
+      isWrappedBackup: true,
+      settings: { rememberSpeed: true },
+      localSettings: { customButtonIcons: {} }
+    });
+
+    expect(
+      importExportUtils.parseImportText(
+        JSON.stringify({ rememberSpeed: true, keyBindings: [] })
+      )
+    ).toEqual({
+      isWrappedBackup: false,
+      settings: { rememberSpeed: true, keyBindings: [] },
+      localSettings: null
+    });
+
+    expect(
+      importExportUtils.extractImportSettings({ enabled: true })
+    ).toBeNull();
+  });
+});
diff --git a/vitest.config.js b/vitest.config.js
new file mode 100644
index 0000000..bedeb66
--- /dev/null
+++ b/vitest.config.js
@@ -0,0 +1,12 @@
+const { defineConfig } = require("vitest/config");
+
+module.exports = defineConfig({
+  test: {
+    environment: "jsdom",
+    clearMocks: true,
+    globals: true,
+    restoreMocks: true,
+    include: ["tests/**/*.test.js"],
+    setupFiles: ["./tests/setup.js"]
+  }
+});

From e6c56bcecb8681c9198e83c9fcee0071bd3f6085 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:31:34 -0400
Subject: [PATCH 4/9] Allow zero controller opacity in settings

---
 options.js                        | 17 +++++++++++++----
 tests/options.integration.test.js | 17 ++++++++++-------
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/options.js b/options.js
index f26c5b9..ae8e9b4 100644
--- a/options.js
+++ b/options.js
@@ -307,6 +307,11 @@ function clampMarginPxInput(el, fallback) {
   return controllerUtils.clampControllerMarginPx(el && el.value, fallback);
 }
 
+function parseFiniteNumberOrFallback(value, fallback) {
+  var numericValue = parseFloat(value);
+  return Number.isFinite(numericValue) ? numericValue : fallback;
+}
+
 function syncSiteRuleField(ruleEl, rule, key, isCheckbox) {
   var input = ruleEl.querySelector(".site-" + key);
   if (!input) return;
@@ -624,8 +629,10 @@ function save_options() {
     document.getElementById("controllerLocation").value
   );
   settings.controllerOpacity =
-    parseFloat(document.getElementById("controllerOpacity").value) ||
-    tcDefaults.controllerOpacity;
+    parseFiniteNumberOrFallback(
+      document.getElementById("controllerOpacity").value,
+      tcDefaults.controllerOpacity
+    );
 
   settings.controllerMarginTop = clampMarginPxInput(
     document.getElementById("controllerMarginTop"),
@@ -713,8 +720,10 @@ function save_options() {
 
     if (ruleEl.querySelector(".override-opacity").checked) {
       rule.controllerOpacity =
-        parseFloat(ruleEl.querySelector(".site-controllerOpacity").value) ||
-        settings.controllerOpacity;
+        parseFiniteNumberOrFallback(
+          ruleEl.querySelector(".site-controllerOpacity").value,
+          settings.controllerOpacity
+        );
     }
 
     if (ruleEl.querySelector(".override-subtitleNudge").checked) {
diff --git a/tests/options.integration.test.js b/tests/options.integration.test.js
index 4e14f13..4966525 100644
--- a/tests/options.integration.test.js
+++ b/tests/options.integration.test.js
@@ -78,7 +78,7 @@ describe("options page", () => {
 
     document.getElementById("rememberSpeed").checked = true;
     document.getElementById("hideWithControlsTimer").value = "20";
-    document.getElementById("controllerOpacity").value = "0.55";
+    document.getElementById("controllerOpacity").value = "0";
     document.getElementById("controllerMarginTop").value = "250";
     document.getElementById("controllerMarginBottom").value = "-4";
     document.getElementById("enableSubtitleNudge").checked = true;
@@ -98,6 +98,8 @@ describe("options page", () => {
     rule.querySelector(".site-pattern").value = "youtube.com";
     rule.querySelector(".override-playback").checked = true;
     rule.querySelector(".site-rememberSpeed").checked = true;
+    rule.querySelector(".override-opacity").checked = true;
+    rule.querySelector(".site-controllerOpacity").value = "0";
     rule.querySelector(".override-popup-controlbar").checked = true;
     rule.querySelector(".site-showPopupControlBar").checked = false;
     globalThis.populateControlBarZones(
@@ -119,7 +121,7 @@ describe("options page", () => {
 
     expect(savedSettings.rememberSpeed).toBe(true);
     expect(savedSettings.hideWithControlsTimer).toBe(15);
-    expect(savedSettings.controllerOpacity).toBe(0.55);
+    expect(savedSettings.controllerOpacity).toBe(0);
     expect(savedSettings.controllerMarginTop).toBe(200);
     expect(savedSettings.controllerMarginBottom).toBe(0);
     expect(savedSettings.subtitleNudgeInterval).toBe(10);
@@ -129,11 +131,12 @@ describe("options page", () => {
     expect(savedSettings.siteRules).toEqual(
       expect.arrayContaining([
         expect.objectContaining({
-          pattern: "youtube.com",
-          rememberSpeed: true,
-          showPopupControlBar: false,
-          popupControllerButtons: ["advance"]
-        })
+        pattern: "youtube.com",
+        rememberSpeed: true,
+        controllerOpacity: 0,
+        showPopupControlBar: false,
+        popupControllerButtons: ["advance"]
+      })
       ])
     );
   });

From f32d1b3f71f946649e5ea1e57c0f0bcb73cff789 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:31:36 -0400
Subject: [PATCH 5/9] Accept raw settings backups during import

---
 shared/import-export.js                | 41 ++++++++++++++++++-
 tests/importExport.integration.test.js | 54 +++++++++++++++++++++++++-
 tests/shared.test.js                   | 10 ++++-
 3 files changed, 102 insertions(+), 3 deletions(-)

diff --git a/shared/import-export.js b/shared/import-export.js
index 507d5f0..a51364d 100644
--- a/shared/import-export.js
+++ b/shared/import-export.js
@@ -8,6 +8,44 @@
   root.SpeederShared = root.SpeederShared || {};
   root.SpeederShared.importExport = exports;
 })(typeof globalThis !== "undefined" ? globalThis : this, function() {
+  var rawSettingsKeys = new Set([
+    "audioBoolean",
+    "controllerButtons",
+    "controllerLocation",
+    "controllerMarginBottom",
+    "controllerMarginLeft",
+    "controllerMarginRight",
+    "controllerMarginTop",
+    "controllerOpacity",
+    "enableSubtitleNudge",
+    "enabled",
+    "forceLastSavedSpeed",
+    "hideWithControls",
+    "hideWithControlsTimer",
+    "hideWithYouTubeControls",
+    "keyBindings",
+    "lastSpeed",
+    "popupControllerButtons",
+    "popupMatchHoverControls",
+    "rememberSpeed",
+    "showPopupControlBar",
+    "siteRules",
+    "speed",
+    "startHidden",
+    "subtitleNudgeAmount",
+    "subtitleNudgeInterval"
+  ]);
+
+  function isRecognizedRawSettingsObject(backup) {
+    if (!backup || typeof backup !== "object" || Array.isArray(backup)) {
+      return false;
+    }
+
+    return Object.keys(backup).some(function(key) {
+      return rawSettingsKeys.has(key);
+    });
+  }
+
   function generateBackupFilename(now) {
     var date = now instanceof Date ? now : new Date(now || Date.now());
     var year = date.getFullYear();
@@ -53,7 +91,7 @@
     } else if (
       backup &&
       typeof backup === "object" &&
-      (backup.keyBindings || backup.rememberSpeed !== undefined)
+      isRecognizedRawSettingsObject(backup)
     ) {
       settingsToImport = backup;
     }
@@ -80,6 +118,7 @@
     buildBackupPayload: buildBackupPayload,
     extractImportSettings: extractImportSettings,
     generateBackupFilename: generateBackupFilename,
+    isRecognizedRawSettingsObject: isRecognizedRawSettingsObject,
     parseImportText: parseImportText
   };
 });
diff --git a/tests/importExport.integration.test.js b/tests/importExport.integration.test.js
index f934be5..b044070 100644
--- a/tests/importExport.integration.test.js
+++ b/tests/importExport.integration.test.js
@@ -128,6 +128,58 @@ describe("import/export flows", () => {
     expect(globalThis.restore_options).toHaveBeenCalled();
   });
 
+  it("imports raw settings objects without touching local storage", async () => {
+    vi.useFakeTimers();
+    const chrome = await setupImportExport({
+      local: { customButtonIcons: { faster: { slug: "rocket" } } }
+    });
+
+    const originalCreateElement = document.createElement.bind(document);
+    let createdInput = null;
+    vi.spyOn(document, "createElement").mockImplementation((tagName) => {
+      const el = originalCreateElement(tagName);
+      if (tagName === "input") {
+        createdInput = el;
+        el.click = vi.fn();
+      }
+      return el;
+    });
+
+    globalThis.FileReader = class MockFileReader {
+      readAsText(file) {
+        this.onload({
+          target: {
+            result: file.__text
+          }
+        });
+      }
+    };
+
+    globalThis.importSettings();
+    createdInput.onchange({
+      target: {
+        files: [
+          {
+            __text: JSON.stringify({
+              enabled: false,
+              siteRules: [{ pattern: "example.com", enabled: false }]
+            })
+          }
+        ]
+      }
+    });
+
+    expect(chrome.storage.local.clear).not.toHaveBeenCalled();
+    expect(chrome.storage.local.set).not.toHaveBeenCalled();
+    expect(chrome.storage.sync.set).toHaveBeenCalledWith(
+      {
+        enabled: false,
+        siteRules: [{ pattern: "example.com", enabled: false }]
+      },
+      expect.any(Function)
+    );
+  });
+
   it("clears stale local data when a wrapped backup has empty local settings", async () => {
     vi.useFakeTimers();
     const chrome = await setupImportExport({
@@ -210,7 +262,7 @@ describe("import/export flows", () => {
       target: {
         files: [
           {
-            __text: JSON.stringify({ enabled: true })
+            __text: JSON.stringify({ wat: true })
           }
         ]
       }
diff --git a/tests/shared.test.js b/tests/shared.test.js
index 1d108c9..70c9b69 100644
--- a/tests/shared.test.js
+++ b/tests/shared.test.js
@@ -140,6 +140,14 @@ describe("shared helpers", () => {
 
     expect(
       importExportUtils.extractImportSettings({ enabled: true })
-    ).toBeNull();
+    ).toEqual({
+      isWrappedBackup: false,
+      settings: { enabled: true },
+      localSettings: null
+    });
+
+    expect(importExportUtils.isRecognizedRawSettingsObject({ wat: true })).toBe(
+      false
+    );
   });
 });

From 0cb13905ff70520a4ffbbe0b4a66e8d6b6c8dd86 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:31:39 -0400
Subject: [PATCH 6/9] Fix subtitle nudge site gating

---
 inject.js            | 39 +++++++++++++++----
 tests/inject.test.js | 90 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 122 insertions(+), 7 deletions(-)
 create mode 100644 tests/inject.test.js

diff --git a/inject.js b/inject.js
index 7f7318c..353c98f 100644
--- a/inject.js
+++ b/inject.js
@@ -38,7 +38,7 @@ var tc = {
     controllerButtons: ["rewind", "slower", "faster", "advance", "display"],
     defaultLogLevel: 3,
     logLevel: 3,
-    enableSubtitleNudge: true, // Enabled by default, but only activates on YouTube
+    enableSubtitleNudge: false,
     subtitleNudgeInterval: 50, // Default 50ms balances subtitle tracking with CPU cost
     subtitleNudgeAmount: 0.001,
     customButtonIcons: {}
@@ -649,19 +649,32 @@ function isSubtitleNudgeSupported(video) {
   return Boolean(video);
 }
 
+function isSubtitleNudgeAvailableForVideo(video) {
+  return isSubtitleNudgeSupported(video) && Boolean(tc.settings.enableSubtitleNudge);
+}
+
 function isSubtitleNudgeEnabledForVideo(video) {
-  if (!video || !video.vsc) return tc.settings.enableSubtitleNudge;
+  if (!isSubtitleNudgeAvailableForVideo(video)) return false;
+
+  if (!video || !video.vsc) return true;
 
   if (typeof video.vsc.subtitleNudgeEnabledOverride === "boolean") {
     return video.vsc.subtitleNudgeEnabledOverride;
   }
 
-  return tc.settings.enableSubtitleNudge;
+  return true;
 }
 
 function setSubtitleNudgeEnabledForVideo(video, enabled) {
   if (!video || !video.vsc) return false;
 
+  if (!isSubtitleNudgeAvailableForVideo(video)) {
+    video.vsc.subtitleNudgeEnabledOverride = null;
+    video.vsc.stopSubtitleNudge();
+    updateSubtitleNudgeIndicator(video);
+    return false;
+  }
+
   var normalizedEnabled = Boolean(enabled);
   video.vsc.subtitleNudgeEnabledOverride = normalizedEnabled;
 
@@ -725,14 +738,19 @@ function renderSubtitleNudgeIndicatorContent(target, isEnabled) {
 function updateSubtitleNudgeIndicator(video) {
   if (!video || !video.vsc) return;
 
+  var isAvailable = isSubtitleNudgeAvailableForVideo(video);
   var isEnabled = isSubtitleNudgeEnabledForVideo(video);
-  var title = isEnabled ? "Subtitle nudge enabled" : "Subtitle nudge disabled";
+  var title = !isAvailable
+    ? "Subtitle nudge unavailable on this site"
+    : isEnabled
+      ? "Subtitle nudge enabled"
+      : "Subtitle nudge disabled";
 
   var indicator = video.vsc.subtitleNudgeIndicator;
   if (indicator) {
     renderSubtitleNudgeIndicatorContent(indicator, isEnabled);
     indicator.dataset.enabled = isEnabled ? "true" : "false";
-    indicator.dataset.supported = "true";
+    indicator.dataset.supported = isAvailable ? "true" : "false";
     indicator.title = title;
     indicator.setAttribute("aria-label", title);
   }
@@ -741,7 +759,7 @@ function updateSubtitleNudgeIndicator(video) {
   if (flashEl) {
     renderSubtitleNudgeIndicatorContent(flashEl, isEnabled);
     flashEl.dataset.enabled = isEnabled ? "true" : "false";
-    flashEl.dataset.supported = "true";
+    flashEl.dataset.supported = isAvailable ? "true" : "false";
     flashEl.setAttribute("aria-label", title);
   }
 }
@@ -2580,7 +2598,14 @@ function runAction(action, value, e) {
       "toggleSubtitleNudge",
       "display"
     ];
-    if (userDrivenActionsThatShowController.includes(action) && action !== "display") {
+    var subtitleNudgeActionBlocked =
+      (action === "toggleSubtitleNudge" || action === "nudge") &&
+      !isSubtitleNudgeAvailableForVideo(v);
+    if (
+      userDrivenActionsThatShowController.includes(action) &&
+      action !== "display" &&
+      !subtitleNudgeActionBlocked
+    ) {
       showController(controller, 2000, true);
     }
     if (v.classList.contains("vsc-cancelled")) return;
diff --git a/tests/inject.test.js b/tests/inject.test.js
new file mode 100644
index 0000000..fcb3eff
--- /dev/null
+++ b/tests/inject.test.js
@@ -0,0 +1,90 @@
+import { describe, expect, it, vi } from "vitest";
+import { createChromeMock, flushAsyncWork, loadScript } from "./helpers/browser.js";
+
+function loadBlankDocument() {
+  document.open();
+  document.write("<!doctype html><html><body></body></html>");
+  document.close();
+}
+
+async function bootInject({ sync = {}, local = {} } = {}) {
+  loadBlankDocument();
+  globalThis.chrome = createChromeMock({ sync, local });
+  window.chrome = globalThis.chrome;
+  globalThis.chrome.runtime.onMessage = {
+    addListener: vi.fn()
+  };
+  const originalSyncGet = globalThis.chrome.storage.sync.get;
+  const originalLocalGet = globalThis.chrome.storage.local.get;
+  globalThis.chrome.storage.sync.get = vi.fn((keys, callback) => {
+    Promise.resolve().then(() => originalSyncGet(keys, callback));
+  });
+  globalThis.chrome.storage.local.get = vi.fn((keys, callback) => {
+    Promise.resolve().then(() => originalLocalGet(keys, callback));
+  });
+  globalThis.requestIdleCallback = (callback, options) =>
+    setTimeout(
+      () =>
+        callback({
+          didTimeout: false,
+          timeRemaining() {
+            return 1;
+          }
+        }),
+      (options && options.timeout) || 0
+    );
+  globalThis.cancelIdleCallback = (id) => clearTimeout(id);
+
+  loadScript("shared/controller-utils.js");
+  loadScript("shared/key-bindings.js");
+  loadScript("shared/site-rules.js");
+  loadScript("ui-icons.js");
+  loadScript("inject.js");
+
+  for (let i = 0; i < 3; i += 1) {
+    await flushAsyncWork();
+    await new Promise((resolve) => setTimeout(resolve, 0));
+  }
+}
+
+describe("inject runtime", () => {
+  it("keeps subtitle nudge disabled when the effective setting is off", async () => {
+    await bootInject({
+      sync: {
+        enableSubtitleNudge: false
+      }
+    });
+
+    const stopSubtitleNudge = vi.fn();
+    const startSubtitleNudge = vi.fn();
+    const flashEl = document.createElement("span");
+    const video = {
+      paused: false,
+      playbackRate: 1.5,
+      vsc: {
+        stopSubtitleNudge,
+        startSubtitleNudge,
+        subtitleNudgeEnabledOverride: null,
+        subtitleNudgeIndicator: null,
+        nudgeFlashIndicator: flashEl
+      }
+    };
+
+    expect(window.tc.settings.enableSubtitleNudge).toBe(false);
+    expect(window.isSubtitleNudgeEnabledForVideo(video)).toBe(false);
+    expect(window.setSubtitleNudgeEnabledForVideo(video, true)).toBe(false);
+    expect(video.vsc.subtitleNudgeEnabledOverride).toBeNull();
+    expect(stopSubtitleNudge).toHaveBeenCalledTimes(1);
+    expect(startSubtitleNudge).not.toHaveBeenCalled();
+    expect(flashEl.classList.contains("visible")).toBe(false);
+
+    window.tc.settings.enableSubtitleNudge = true;
+    expect(window.setSubtitleNudgeEnabledForVideo(video, true)).toBe(true);
+    expect(window.isSubtitleNudgeEnabledForVideo(video)).toBe(true);
+
+    window.tc.settings.enableSubtitleNudge = false;
+    expect(window.isSubtitleNudgeEnabledForVideo(video)).toBe(false);
+
+    await new Promise((resolve) => setTimeout(resolve, 0));
+  });
+});

From 6efe92a036d965e2c4f1c3fa1b5efcdf9ead14f1 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:31:41 -0400
Subject: [PATCH 7/9] Refine site rule toggle and override UI

---
 options.css                       | 135 ++++++++++--
 options.html                      |  28 ++-
 options.js                        | 336 +++++++++++++++---------------
 tests/options.integration.test.js |  51 +++++
 ui-icons.js                       |   3 +
 5 files changed, 363 insertions(+), 190 deletions(-)

diff --git a/options.css b/options.css
index 9119cb5..e4c16a9 100644
--- a/options.css
+++ b/options.css
@@ -7,6 +7,17 @@
   --text: #17191c;
   --muted: #626b76;
   --accent: #111827;
+  --switch-track-off: #c1cad6;
+  --switch-track-off-border: #aeb8c5;
+  --switch-track-on: #111827;
+  --switch-track-on-border: #111827;
+  --switch-thumb-off: #ffffff;
+  --switch-thumb-on: #ffffff;
+  --toggle-open-fg: #111827;
+  --toggle-open-bg: #eef2f6;
+  --toggle-open-border: #c5ccd5;
+  --toggle-open-hover-bg: #e4eaf1;
+  --toggle-open-hover-border: #b5c0cc;
   --danger: #b42318;
 }
 
@@ -210,6 +221,7 @@ button:active {
 }
 
 button:focus-visible,
+input[type="checkbox"]:focus-visible,
 input[type="text"]:focus,
 select:focus,
 textarea:focus {
@@ -247,10 +259,49 @@ textarea:focus {
 }
 
 input[type="checkbox"] {
-  width: 16px;
-  height: 16px;
-  margin: 2px 0 0;
-  accent-color: var(--accent);
+  appearance: none;
+  -webkit-appearance: none;
+  position: relative;
+  width: 46px;
+  min-width: 46px;
+  height: 28px;
+  margin: 0;
+  border: 1px solid var(--switch-track-off-border);
+  border-radius: 999px;
+  background: var(--switch-track-off);
+  cursor: pointer;
+  transition: background-color 120ms ease, border-color 120ms ease,
+    box-shadow 120ms ease;
+  flex-shrink: 0;
+}
+
+input[type="checkbox"]::before {
+  content: "";
+  position: absolute;
+  top: 3px;
+  left: 3px;
+  width: 20px;
+  height: 20px;
+  border-radius: 50%;
+  background: var(--switch-thumb-off);
+  box-shadow: 0 1px 2px rgba(17, 24, 39, 0.18),
+    inset 0 0 0 1px rgba(17, 24, 39, 0.08);
+  transition: transform 120ms ease, background-color 120ms ease;
+}
+
+input[type="checkbox"]:checked {
+  background: var(--switch-track-on);
+  border-color: var(--switch-track-on-border);
+}
+
+input[type="checkbox"]:checked::before {
+  transform: translateX(18px);
+  background: var(--switch-thumb-on);
+}
+
+input[type="checkbox"]:disabled {
+  cursor: default;
+  opacity: 0.7;
 }
 
 label {
@@ -322,6 +373,39 @@ label em {
 
 .toggle-site-rule {
   font-weight: 400;
+  color: var(--muted);
+}
+
+.toggle-site-rule:hover {
+  color: var(--toggle-open-fg);
+  background: var(--toggle-open-hover-bg);
+  border-color: var(--toggle-open-hover-border);
+}
+
+.toggle-site-rule .site-rule-toggle-icon {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 18px;
+  height: 18px;
+  pointer-events: none;
+}
+
+.toggle-site-rule .site-rule-toggle-icon svg {
+  width: 18px;
+  height: 18px;
+}
+
+.site-rule:not(.collapsed) .toggle-site-rule {
+  color: var(--toggle-open-fg);
+  background: var(--toggle-open-bg);
+  border-color: var(--toggle-open-border);
+}
+
+.site-rule:not(.collapsed) .toggle-site-rule:hover {
+  color: var(--toggle-open-fg);
+  background: var(--toggle-open-hover-bg);
+  border-color: var(--toggle-open-hover-border);
 }
 
 .row {
@@ -339,7 +423,7 @@ label em {
 }
 
 .row.row-checkbox {
-  grid-template-columns: minmax(0, 1fr) 24px;
+  grid-template-columns: minmax(0, 1fr) auto;
 }
 
 .row.row-checkbox input[type="checkbox"] {
@@ -403,9 +487,9 @@ label em {
 
 .site-override-lead {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) 24px;
+  grid-template-columns: minmax(0, 1fr) auto;
   gap: 16px;
-  align-items: flex-start;
+  align-items: center;
   font-weight: 600;
   margin-bottom: 8px;
   cursor: pointer;
@@ -414,7 +498,6 @@ label em {
 
 .site-override-lead input[type="checkbox"] {
   justify-self: end;
-  margin-top: 3px;
 }
 
 .site-override-lead span {
@@ -427,10 +510,19 @@ label em {
 .site-rule-override-section .site-autohide-container,
 .site-rule-override-section .site-playback-container,
 .site-rule-override-section .site-opacity-container,
-.site-rule-override-section .site-subtitleNudge-container {
+.site-rule-override-section .site-subtitleNudge-container,
+.site-controlbar-container,
+.site-popup-controlbar-container,
+.site-shortcuts-container {
   padding-left: 4px;
 }
 
+.site-override-disabled {
+  opacity: 0.48;
+  pointer-events: none;
+  user-select: none;
+}
+
 .cb-editor {
   display: flex;
   flex-direction: column;
@@ -803,7 +895,7 @@ button.lucide-result-tile.lucide-picked {
 }
 
 .site-rule-option-checkbox {
-  grid-template-columns: minmax(0, 1fr) 24px;
+  grid-template-columns: minmax(0, 1fr) auto;
 }
 
 .site-rule-option-checkbox > input[type="checkbox"] {
@@ -833,7 +925,7 @@ button.lucide-result-tile.lucide-picked {
 
 .site-rule-split-label {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) 24px;
+  grid-template-columns: minmax(0, 1fr) auto;
   gap: 16px;
   align-items: flex-start;
   width: 100%;
@@ -845,7 +937,7 @@ button.lucide-result-tile.lucide-picked {
 
 .site-rule-split-label input[type="checkbox"] {
   justify-self: end;
-  margin-top: 3px;
+  margin-top: 0;
 }
 
 .site-rule-option-checkbox > .site-rule-split-label {
@@ -889,8 +981,8 @@ button.lucide-result-tile.lucide-picked {
 
 .force-label {
   display: flex;
-  align-items: flex-start;
-  gap: 8px;
+  align-items: center;
+  gap: 10px;
   width: auto;
   margin: 0;
   color: var(--muted);
@@ -898,7 +990,7 @@ button.lucide-result-tile.lucide-picked {
 }
 
 .force-label input {
-  margin-top: 2px;
+  margin-top: 0;
 }
 
 .action-row {
@@ -956,7 +1048,7 @@ button.lucide-result-tile.lucide-picked {
   }
 
   .site-override-lead {
-    grid-template-columns: minmax(0, 1fr) 24px;
+    grid-template-columns: minmax(0, 1fr) auto;
   }
 
   .action-row button,
@@ -1005,6 +1097,17 @@ button.lucide-result-tile.lucide-picked {
     --text: #f2f4f6;
     --muted: #a0a8b2;
     --accent: #f2f4f6;
+    --switch-track-off: #374151;
+    --switch-track-off-border: #4b5563;
+    --switch-track-on: #aab7c6;
+    --switch-track-on-border: #aab7c6;
+    --switch-thumb-off: #f8fafc;
+    --switch-thumb-on: #111315;
+    --toggle-open-fg: #f2f4f6;
+    --toggle-open-bg: #2b3138;
+    --toggle-open-border: #4b5563;
+    --toggle-open-hover-bg: #374151;
+    --toggle-open-hover-border: #64748b;
     --danger: #ff8a80;
   }
 
diff --git a/options.html b/options.html
index 0bd6c9e..189fddf 100644
--- a/options.html
+++ b/options.html
@@ -483,7 +483,15 @@
         <template id="siteRuleTemplate">
           <div class="site-rule">
             <div class="site-rule-header">
-              <button type="button" class="toggle-site-rule" title="Expand/Collapse">&plus;</button>
+              <button
+                type="button"
+                class="toggle-site-rule"
+                title="Expand site rule"
+                aria-label="Expand site rule"
+                aria-expanded="false"
+              >
+                <span class="site-rule-toggle-icon" aria-hidden="true">&hellip;</span>
+              </button>
               <input
                 type="text"
                 class="site-pattern"
@@ -504,7 +512,7 @@
                     <span>Override placement for this site</span>
                     <input type="checkbox" class="override-placement" />
                   </label>
-                  <div class="site-placement-container" style="display: none">
+                  <div class="site-placement-container">
                     <div class="site-rule-option site-rule-option-field">
                       <label>Default controller location:</label>
                       <select class="site-controllerLocation">
@@ -542,7 +550,7 @@
                     <span>Override hide-by-default for this site</span>
                     <input type="checkbox" class="override-visibility" />
                   </label>
-                  <div class="site-visibility-container" style="display: none">
+                  <div class="site-visibility-container">
                     <div class="site-rule-option site-rule-option-checkbox">
                       <label>Hide controller by default:</label>
                       <input type="checkbox" class="site-startHidden" />
@@ -554,7 +562,7 @@
                     <span>Override auto-hide for this site</span>
                     <input type="checkbox" class="override-autohide" />
                   </label>
-                  <div class="site-autohide-container" style="display: none">
+                  <div class="site-autohide-container">
                     <div class="site-rule-option site-rule-option-checkbox">
                       <label class="site-rule-split-label">
                         <span>Hide with controls (idle-based)</span>
@@ -572,7 +580,7 @@
                     <span>Override playback for this site</span>
                     <input type="checkbox" class="override-playback" />
                   </label>
-                  <div class="site-playback-container" style="display: none">
+                  <div class="site-playback-container">
                     <div class="site-rule-option site-rule-option-checkbox">
                       <label>Remember playback speed:</label>
                       <input type="checkbox" class="site-rememberSpeed" />
@@ -592,7 +600,7 @@
                     <span>Override opacity for this site</span>
                     <input type="checkbox" class="override-opacity" />
                   </label>
-                  <div class="site-opacity-container" style="display: none">
+                  <div class="site-opacity-container">
                     <div class="site-rule-option site-rule-option-field">
                       <label>Controller opacity:</label>
                       <input type="text" class="site-controllerOpacity" />
@@ -604,7 +612,7 @@
                     <span>Override subtitle nudge for this site</span>
                     <input type="checkbox" class="override-subtitleNudge" />
                   </label>
-                  <div class="site-subtitleNudge-container" style="display: none">
+                  <div class="site-subtitleNudge-container">
                     <div class="site-rule-option site-rule-option-checkbox">
                       <label>Enable subtitle nudge:</label>
                       <input type="checkbox" class="site-enableSubtitleNudge" />
@@ -620,7 +628,7 @@
                     <span>Override in-player control bar for this site</span>
                     <input type="checkbox" class="override-controlbar" />
                   </label>
-                  <div class="site-controlbar-container" style="display: none">
+                  <div class="site-controlbar-container">
                     <div class="cb-editor">
                       <div class="cb-zone">
                         <div class="cb-zone-label">Active</div>
@@ -638,7 +646,7 @@
                     <span>Override extension popup for this site</span>
                     <input type="checkbox" class="override-popup-controlbar" />
                   </label>
-                  <div class="site-popup-controlbar-container" style="display: none">
+                  <div class="site-popup-controlbar-container">
                     <div class="site-rule-option site-rule-option-checkbox">
                       <label>Show popup control bar</label>
                       <input type="checkbox" class="site-showPopupControlBar" />
@@ -660,7 +668,7 @@
                     <span>Override shortcuts for this site</span>
                     <input type="checkbox" class="override-shortcuts" />
                   </label>
-                  <div class="site-shortcuts-container" style="display: none"></div>
+                  <div class="site-shortcuts-container"></div>
                 </div>
               </div>
             </div>
diff --git a/options.js b/options.js
index ae8e9b4..b8e8dcf 100644
--- a/options.js
+++ b/options.js
@@ -312,6 +312,71 @@ function parseFiniteNumberOrFallback(value, fallback) {
   return Number.isFinite(numericValue) ? numericValue : fallback;
 }
 
+function updateSiteRuleToggleIcon(toggleButton, action) {
+  if (!toggleButton) return;
+  var iconEl = toggleButton.querySelector(".site-rule-toggle-icon");
+  if (!iconEl) return;
+
+  if (typeof vscIconSvgString === "function" && typeof vscSetSvgContent === "function") {
+    var svgHtml = vscIconSvgString(action, 16);
+    if (svgHtml && vscSetSvgContent(iconEl, svgHtml)) {
+      return;
+    }
+  }
+
+  iconEl.textContent = action === "chevronUp" ? "\u2212" : "\u2026";
+}
+
+function setSiteRuleExpandedState(ruleEl, expanded) {
+  if (!ruleEl) return;
+
+  var ruleBody = ruleEl.querySelector(".site-rule-body");
+  var toggleButton = ruleEl.querySelector(".toggle-site-rule");
+  if (ruleBody) {
+    ruleBody.style.display = expanded ? "block" : "none";
+  }
+
+  ruleEl.classList.toggle("collapsed", !expanded);
+
+  if (!toggleButton) return;
+  var label = expanded ? "Collapse site rule" : "Expand site rule";
+  toggleButton.title = label;
+  toggleButton.setAttribute("aria-label", label);
+  toggleButton.setAttribute("aria-expanded", expanded ? "true" : "false");
+  updateSiteRuleToggleIcon(toggleButton, expanded ? "chevronUp" : "moreHorizontal");
+}
+
+function setSiteOverrideContainerState(container, enabled) {
+  if (!container) return;
+
+  container.classList.toggle("site-override-disabled", !enabled);
+  container.setAttribute("aria-disabled", enabled ? "false" : "true");
+
+  Array.prototype.forEach.call(
+    container.querySelectorAll("input, select, textarea, button"),
+    function (control) {
+      control.disabled = !enabled;
+    }
+  );
+
+  Array.prototype.forEach.call(
+    container.querySelectorAll(".cb-block"),
+    function (block) {
+      block.draggable = enabled;
+    }
+  );
+}
+
+function applySiteRuleOverrideState(ruleEl, checkboxClass, containerClass) {
+  if (!ruleEl) return;
+  var checkbox = ruleEl.querySelector("." + checkboxClass);
+  var container = ruleEl.querySelector("." + containerClass);
+  if (!container) return;
+
+  container.style.display = "block";
+  setSiteOverrideContainerState(container, checkbox ? checkbox.checked : false);
+}
+
 function syncSiteRuleField(ruleEl, rule, key, isCheckbox) {
   var input = ruleEl.querySelector(".site-" + key);
   if (!input) return;
@@ -894,9 +959,7 @@ function createSiteRule(rule) {
   ruleEl.querySelector(".site-pattern").value = pattern;
 
   // Make the rule body collapsed by default
-  var ruleBody = ruleEl.querySelector(".site-rule-body");
-  ruleBody.style.display = "none";
-  ruleEl.classList.add("collapsed");
+  setSiteRuleExpandedState(ruleEl, false);
 
   var enabledCheckbox = ruleEl.querySelector(".site-enabled");
   var contentEl = ruleEl.querySelector(".site-rule-content");
@@ -931,114 +994,99 @@ function createSiteRule(rule) {
   ];
   var hasPlacementOverride =
     rule && placementKeys.some(function (k) { return rule[k] !== undefined; });
-  if (hasPlacementOverride) {
-    ruleEl.querySelector(".override-placement").checked = true;
-    ruleEl.querySelector(".site-placement-container").style.display = "block";
-  }
+  ruleEl.querySelector(".override-placement").checked = Boolean(hasPlacementOverride);
   syncSiteRuleField(ruleEl, rule, "controllerLocation", false);
   syncSiteRuleField(ruleEl, rule, "controllerMarginTop", false);
   syncSiteRuleField(ruleEl, rule, "controllerMarginBottom", false);
+  applySiteRuleOverrideState(ruleEl, "override-placement", "site-placement-container");
 
-  if (rule && rule.startHidden !== undefined) {
-    ruleEl.querySelector(".override-visibility").checked = true;
-    ruleEl.querySelector(".site-visibility-container").style.display = "block";
-  }
+  ruleEl.querySelector(".override-visibility").checked = Boolean(
+    rule && rule.startHidden !== undefined
+  );
   syncSiteRuleField(ruleEl, rule, "startHidden", true);
+  applySiteRuleOverrideState(ruleEl, "override-visibility", "site-visibility-container");
 
-  if (
+  var hasAutohideOverride = Boolean(
     rule &&
     (rule.hideWithControls !== undefined ||
       rule.hideWithControlsTimer !== undefined)
-  ) {
-    ruleEl.querySelector(".override-autohide").checked = true;
-    ruleEl.querySelector(".site-autohide-container").style.display = "block";
-  }
+  );
+  ruleEl.querySelector(".override-autohide").checked = hasAutohideOverride;
   syncSiteRuleField(ruleEl, rule, "hideWithControls", true);
   syncSiteRuleField(ruleEl, rule, "hideWithControlsTimer", false);
+  applySiteRuleOverrideState(ruleEl, "override-autohide", "site-autohide-container");
 
-  if (
+  var hasPlaybackOverride = Boolean(
     rule &&
     (rule.rememberSpeed !== undefined ||
       rule.forceLastSavedSpeed !== undefined ||
       rule.audioBoolean !== undefined)
-  ) {
-    ruleEl.querySelector(".override-playback").checked = true;
-    ruleEl.querySelector(".site-playback-container").style.display = "block";
-  }
+  );
+  ruleEl.querySelector(".override-playback").checked = hasPlaybackOverride;
   syncSiteRuleField(ruleEl, rule, "rememberSpeed", true);
   syncSiteRuleField(ruleEl, rule, "forceLastSavedSpeed", true);
   syncSiteRuleField(ruleEl, rule, "audioBoolean", true);
+  applySiteRuleOverrideState(ruleEl, "override-playback", "site-playback-container");
 
-  if (rule && rule.controllerOpacity !== undefined) {
-    ruleEl.querySelector(".override-opacity").checked = true;
-    ruleEl.querySelector(".site-opacity-container").style.display = "block";
-  }
+  ruleEl.querySelector(".override-opacity").checked = Boolean(
+    rule && rule.controllerOpacity !== undefined
+  );
   syncSiteRuleField(ruleEl, rule, "controllerOpacity", false);
+  applySiteRuleOverrideState(ruleEl, "override-opacity", "site-opacity-container");
 
-  if (
+  var hasSubtitleNudgeOverride = Boolean(
     rule &&
     (rule.enableSubtitleNudge !== undefined ||
       rule.subtitleNudgeInterval !== undefined)
-  ) {
-    ruleEl.querySelector(".override-subtitleNudge").checked = true;
-    ruleEl.querySelector(".site-subtitleNudge-container").style.display =
-      "block";
-  }
+  );
+  ruleEl.querySelector(".override-subtitleNudge").checked = hasSubtitleNudgeOverride;
   syncSiteRuleField(ruleEl, rule, "enableSubtitleNudge", true);
   syncSiteRuleField(ruleEl, rule, "subtitleNudgeInterval", false);
+  applySiteRuleOverrideState(
+    ruleEl,
+    "override-subtitleNudge",
+    "site-subtitleNudge-container"
+  );
 
-  if (rule && Array.isArray(rule.controllerButtons)) {
-    ruleEl.querySelector(".override-controlbar").checked = true;
-    var cbContainer = ruleEl.querySelector(".site-controlbar-container");
-    cbContainer.style.display = "block";
-    populateControlBarZones(
-      ruleEl.querySelector(".site-cb-active"),
-      ruleEl.querySelector(".site-cb-available"),
-      rule.controllerButtons
-    );
-  }
+  var hasControlbarOverride = Boolean(rule && Array.isArray(rule.controllerButtons));
+  ruleEl.querySelector(".override-controlbar").checked = hasControlbarOverride;
+  populateControlBarZones(
+    ruleEl.querySelector(".site-cb-active"),
+    ruleEl.querySelector(".site-cb-available"),
+    hasControlbarOverride ? rule.controllerButtons : getControlBarOrder()
+  );
+  applySiteRuleOverrideState(ruleEl, "override-controlbar", "site-controlbar-container");
 
-  if (
+  var hasPopupControlbarOverride = Boolean(
     rule &&
     (rule.showPopupControlBar !== undefined ||
       Array.isArray(rule.popupControllerButtons))
-  ) {
-    ruleEl.querySelector(".override-popup-controlbar").checked = true;
-    var popupCbContainer = ruleEl.querySelector(".site-popup-controlbar-container");
-    popupCbContainer.style.display = "block";
-    var sitePopupActive = ruleEl.querySelector(".site-popup-cb-active");
-    var sitePopupAvailable = ruleEl.querySelector(".site-popup-cb-available");
-    if (Array.isArray(rule.popupControllerButtons)) {
-      populateControlBarZones(
-        sitePopupActive,
-        sitePopupAvailable,
-        sanitizePopupButtonOrder(rule.popupControllerButtons),
-        function (id) {
-          return !popupExcludedButtonIds.has(id);
-        }
-      );
-    } else if (
-      sitePopupActive &&
-      sitePopupAvailable &&
-      sitePopupActive.children.length === 0
-    ) {
-      populateControlBarZones(
-        sitePopupActive,
-        sitePopupAvailable,
-        getPopupControlBarOrder(),
-        function (id) {
-          return !popupExcludedButtonIds.has(id);
-        }
-      );
+  );
+  ruleEl.querySelector(".override-popup-controlbar").checked =
+    hasPopupControlbarOverride;
+  populateControlBarZones(
+    ruleEl.querySelector(".site-popup-cb-active"),
+    ruleEl.querySelector(".site-popup-cb-available"),
+    hasPopupControlbarOverride && Array.isArray(rule.popupControllerButtons)
+      ? sanitizePopupButtonOrder(rule.popupControllerButtons)
+      : getPopupControlBarOrder(),
+    function (id) {
+      return !popupExcludedButtonIds.has(id);
     }
-  }
+  );
   syncSiteRuleField(ruleEl, rule, "showPopupControlBar", true);
+  applySiteRuleOverrideState(
+    ruleEl,
+    "override-popup-controlbar",
+    "site-popup-controlbar-container"
+  );
 
-  if (rule && Array.isArray(rule.shortcuts) && rule.shortcuts.length > 0) {
-    ruleEl.querySelector(".override-shortcuts").checked = true;
-    var container = ruleEl.querySelector(".site-shortcuts-container");
-    container.style.display = "block";
-
+  var hasShortcutOverride = Boolean(
+    rule && Array.isArray(rule.shortcuts) && rule.shortcuts.length > 0
+  );
+  ruleEl.querySelector(".override-shortcuts").checked = hasShortcutOverride;
+  var container = ruleEl.querySelector(".site-shortcuts-container");
+  if (hasShortcutOverride) {
     rule.shortcuts.forEach((shortcut) => {
       addSiteRuleShortcut(
         container,
@@ -1048,13 +1096,41 @@ function createSiteRule(rule) {
         shortcut.force
       );
     });
+  } else {
+    populateDefaultSiteShortcuts(container);
   }
+  applySiteRuleOverrideState(ruleEl, "override-shortcuts", "site-shortcuts-container");
 
   document.getElementById("siteRulesContainer").appendChild(ruleEl);
 }
 
 function populateDefaultSiteShortcuts(container) {
-  tcDefaults.keyBindings.forEach((binding) => {
+  var bindings = [];
+  document.querySelectorAll("#customs .shortcut-row").forEach((row) => {
+    var action = row.dataset.action;
+    if (!action) return;
+
+    var keyInput = row.querySelector(".customKey");
+    var binding = normalizeStoredBinding(keyInput && keyInput.vscBinding);
+    if (!binding) return;
+
+    var valueInput = row.querySelector(".customValue");
+    bindings.push({
+      action: action,
+      code: binding.code,
+      disabled: binding.disabled === true,
+      value: customActionsNoValues.includes(action)
+        ? 0
+        : Number(valueInput && valueInput.value),
+      force: false
+    });
+  });
+
+  if (bindings.length === 0) {
+    bindings = tcDefaults.keyBindings.slice();
+  }
+
+  bindings.forEach((binding) => {
     addSiteRuleShortcut(container, binding.action, binding, binding.value, false);
   });
 }
@@ -1626,29 +1702,26 @@ document.addEventListener("DOMContentLoaded", function () {
     eventCaller(event, "customKey", recordKeyPress)
   );
   document.addEventListener("click", (event) => {
-    if (event.target.classList.contains("removeParent")) {
-      event.target.parentNode.remove();
+    var target = event.target;
+    var targetEl = target && target.closest ? target : target.parentElement;
+    if (!targetEl) return;
+
+    var removeParentButton = targetEl.closest(".removeParent");
+    if (removeParentButton) {
+      removeParentButton.parentNode.remove();
       refreshAddShortcutSelector();
       return;
     }
-    if (event.target.classList.contains("remove-site-rule")) {
-      event.target.closest(".site-rule").remove();
+    var removeSiteRuleButton = targetEl.closest(".remove-site-rule");
+    if (removeSiteRuleButton) {
+      removeSiteRuleButton.closest(".site-rule").remove();
       return;
     }
-    if (event.target.classList.contains("toggle-site-rule")) {
-      var ruleEl = event.target.closest(".site-rule");
-      var ruleBody = ruleEl.querySelector(".site-rule-body");
+    var toggleButton = targetEl.closest(".toggle-site-rule");
+    if (toggleButton) {
+      var ruleEl = toggleButton.closest(".site-rule");
       var isCollapsed = ruleEl.classList.contains("collapsed");
-      
-      if (isCollapsed) {
-        ruleBody.style.display = "block";
-        ruleEl.classList.remove("collapsed");
-        event.target.textContent = "\u2212";
-      } else {
-        ruleBody.style.display = "none";
-        ruleEl.classList.add("collapsed");
-        event.target.textContent = "\u002b";
-      }
+      setSiteRuleExpandedState(ruleEl, isCollapsed);
       return;
     }
   });
@@ -1670,7 +1743,10 @@ document.addEventListener("DOMContentLoaded", function () {
       "override-autohide": "site-autohide-container",
       "override-playback": "site-playback-container",
       "override-opacity": "site-opacity-container",
-      "override-subtitleNudge": "site-subtitleNudge-container"
+      "override-subtitleNudge": "site-subtitleNudge-container",
+      "override-controlbar": "site-controlbar-container",
+      "override-popup-controlbar": "site-popup-controlbar-container",
+      "override-shortcuts": "site-shortcuts-container"
     };
     for (var ocb in siteOverrideContainers) {
       if (event.target.classList.contains(ocb)) {
@@ -1679,78 +1755,10 @@ document.addEventListener("DOMContentLoaded", function () {
           "." + siteOverrideContainers[ocb]
         );
         if (targetBox) {
-          targetBox.style.display = event.target.checked ? "block" : "none";
+          setSiteOverrideContainerState(targetBox, event.target.checked);
         }
         return;
       }
     }
-
-    // Handle site rule override checkboxes
-    if (event.target.classList.contains("override-shortcuts")) {
-      var container = event.target
-        .closest(".site-rule-shortcuts")
-        .querySelector(".site-shortcuts-container");
-      if (event.target.checked) {
-        container.style.display = "block";
-        if (container.children.length === 0) {
-          populateDefaultSiteShortcuts(container);
-        }
-      } else {
-        container.style.display = "none";
-      }
-    }
-
-    if (event.target.classList.contains("override-controlbar")) {
-      var cbContainer = event.target
-        .closest(".site-rule-controlbar")
-        .querySelector(".site-controlbar-container");
-      if (event.target.checked) {
-        cbContainer.style.display = "block";
-        var activeZone = cbContainer.querySelector(".site-cb-active");
-        var availableZone = cbContainer.querySelector(".site-cb-available");
-        if (
-          activeZone &&
-          availableZone &&
-          activeZone.children.length === 0 &&
-          availableZone.children.length === 0
-        ) {
-          populateControlBarZones(
-            activeZone,
-            availableZone,
-            getControlBarOrder()
-          );
-        }
-      } else {
-        cbContainer.style.display = "none";
-      }
-    }
-
-    if (event.target.classList.contains("override-popup-controlbar")) {
-      var popupCbContainer = event.target
-        .closest(".site-rule-controlbar")
-        .querySelector(".site-popup-controlbar-container");
-      if (event.target.checked) {
-        popupCbContainer.style.display = "block";
-        var popupActiveZone = popupCbContainer.querySelector(".site-popup-cb-active");
-        var popupAvailableZone = popupCbContainer.querySelector(".site-popup-cb-available");
-        if (
-          popupActiveZone &&
-          popupAvailableZone &&
-          popupActiveZone.children.length === 0 &&
-          popupAvailableZone.children.length === 0
-        ) {
-          populateControlBarZones(
-            popupActiveZone,
-            popupAvailableZone,
-            getPopupControlBarOrder(),
-            function (id) {
-              return !popupExcludedButtonIds.has(id);
-            }
-          );
-        }
-      } else {
-        popupCbContainer.style.display = "none";
-      }
-    }
   });
 });
diff --git a/tests/options.integration.test.js b/tests/options.integration.test.js
index 4966525..2a57a2f 100644
--- a/tests/options.integration.test.js
+++ b/tests/options.integration.test.js
@@ -73,6 +73,57 @@ describe("options page", () => {
     expect(chrome.storage.sync.set).not.toHaveBeenCalled();
   });
 
+  it("shows a more-menu trigger for collapsed site rules and a collapse trigger when open", async () => {
+    await setupOptions({ sync: { siteRules: [] } });
+
+    globalThis.createSiteRule({ pattern: "youtube.com" });
+
+    const rule = document.getElementById("siteRulesContainer").lastElementChild;
+    const toggle = rule.querySelector(".toggle-site-rule");
+    const body = rule.querySelector(".site-rule-body");
+
+    expect(rule.classList.contains("collapsed")).toBe(true);
+    expect(body.style.display).toBe("none");
+    expect(toggle.getAttribute("aria-expanded")).toBe("false");
+    expect(toggle.getAttribute("aria-label")).toBe("Expand site rule");
+    expect(toggle.querySelector("svg")).not.toBeNull();
+
+    globalThis.setSiteRuleExpandedState(rule, true);
+
+    expect(rule.classList.contains("collapsed")).toBe(false);
+    expect(body.style.display).toBe("block");
+    expect(toggle.getAttribute("aria-expanded")).toBe("true");
+    expect(toggle.getAttribute("aria-label")).toBe("Collapse site rule");
+  });
+
+  it("keeps site override settings visible but disabled until enabled", async () => {
+    await setupOptions({ sync: { siteRules: [] } });
+
+    globalThis.createSiteRule({ pattern: "youtube.com" });
+
+    const rule = document.getElementById("siteRulesContainer").lastElementChild;
+    const playbackOverride = rule.querySelector(".override-playback");
+    const playbackContainer = rule.querySelector(".site-playback-container");
+    const rememberSpeed = rule.querySelector(".site-rememberSpeed");
+
+    expect(playbackContainer.classList.contains("site-override-disabled")).toBe(
+      true
+    );
+    expect(rememberSpeed.disabled).toBe(true);
+
+    playbackOverride.checked = true;
+    playbackOverride.dispatchEvent(
+      new Event("change", {
+        bubbles: true
+      })
+    );
+
+    expect(playbackContainer.classList.contains("site-override-disabled")).toBe(
+      false
+    );
+    expect(rememberSpeed.disabled).toBe(false);
+  });
+
   it("saves normalized settings and sanitized popup/site-rule controls", async () => {
     const chrome = await setupOptions();
 
diff --git a/ui-icons.js b/ui-icons.js
index 63ddf1a..d7edcf9 100644
--- a/ui-icons.js
+++ b/ui-icons.js
@@ -16,6 +16,9 @@ var vscUiIconPaths = {
   slower: '<line x1="5" y1="12" x2="19" y2="12"/>',
   faster:
     '<line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/>',
+  moreHorizontal:
+    '<circle cx="6" cy="12" r="1.5"/><circle cx="12" cy="12" r="1.5"/><circle cx="18" cy="12" r="1.5"/>',
+  chevronUp: '<path d="m18 15-6-6-6 6"/>',
   display:
     '<line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/>',
   fast: '<polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/>',

From 8456111bf0d6114fd82db1fceba39eec6e053f16 Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:31:45 -0400
Subject: [PATCH 8/9] fix: correct AMO URL and lucide spec object key

---
 README.md                   | 2 +-
 tests/lucide-client.spec.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index a3f5c7d..2a96866 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Available for Firefox  
-[![Add to Firefox](https://img.shields.io/badge/Add%20to-Firefox-orange?logo=firefox&logoColor=white)](https://addons.mozilla.org//firefox/addon/speeder/)
+[![Add to Firefox](https://img.shields.io/badge/Add%20to-Firefox-orange?logo=firefox&logoColor=white)](https://addons.mozilla.org/firefox/addon/speeder/)
 
 
 # The science of accelerated playback
diff --git a/tests/lucide-client.spec.js b/tests/lucide-client.spec.js
index b5b439b..4b2b050 100644
--- a/tests/lucide-client.spec.js
+++ b/tests/lucide-client.spec.js
@@ -49,7 +49,7 @@ describe("lucide-client.js", () => {
     const results = window.searchLucideSlugs(
       {
         alarm: ["clock", "time"],
-        badge-alert: ["alert", "warning"],
+        "badge-alert": ["alert", "warning"],
         calendar: ["date", "time"]
       },
       "al",

From 4f87aadfd7ff54dbaaa8751b9c23bef63ae81f5f Mon Sep 17 00:00:00 2001
From: Josh Patra <joshpatra12@gmail.com>
Date: Tue, 7 Apr 2026 14:32:21 -0400
Subject: [PATCH 9/9] Bump version to 5.1.8.0

---
 manifest.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manifest.json b/manifest.json
index 1c859c7..8a8ee70 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "Speeder",
   "short_name": "Speeder",
-  "version": "5.1.7.0",
+  "version": "5.1.8.0",
   "manifest_version": 2,
   "description": "Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts (New and improved version of \"Video Speed Controller\")",
   "homepage_url": "https://github.com/SoPat712/speeder",