diff --git a/build.py b/build.py
index c0a0013..84ce2a0 100644
--- a/build.py
+++ b/build.py
@@ -11,14 +11,11 @@ TARGET_FILE = "manifest.json"
 def zip_folder(output_name, folder, exclude_files, exclude_dirs):
     with zipfile.ZipFile(output_name, "w", zipfile.ZIP_DEFLATED) as zipf:
         for root, dirs, files in os.walk(folder):
-            # Exclude specified directories
             dirs[:] = [
                 d
                 for d in dirs
-                if os.path.join(root, d).replace(folder + os.sep, "")
-                not in exclude_dirs
+                if os.path.relpath(os.path.join(root, d), folder) not in exclude_dirs
             ]
-
             for file in files:
                 rel_path = os.path.relpath(os.path.join(root, file), folder)
                 if (
@@ -30,13 +27,11 @@ def zip_folder(output_name, folder, exclude_files, exclude_dirs):
                 zipf.write(os.path.join(root, file), arcname=rel_path)
 
 
-def update_version_line(file_path, new_base_version):
+def update_version_line(file_path, new_version):
     with open(file_path, "r", encoding="utf-8") as f:
         lines = f.readlines()
 
-    new_version = f"{new_base_version}.0"
     updated = False
-
     for i, line in enumerate(lines):
         match = re.match(r'\s*"version":\s*"([^"]+)"', line)
         if match:
@@ -45,52 +40,63 @@ def update_version_line(file_path, new_base_version):
                 r'"version":\s*".+?"', f'"version": "{new_version}"', line
             )
             updated = True
-            print(f"🛠️ Changed version from {old_version} ➜ {new_version}")
+            print(
+                f"🛠️ Changed version in {file_path} from {old_version} ➜ {new_version}"
+            )
             break
 
     if updated:
         with open(file_path, "w", encoding="utf-8") as f:
             f.writelines(lines)
     else:
-        print("⚠️ No version line found to update.")
+        print(f"⚠️ No version line found in {file_path}.")
 
 
 def main():
-    base_version = input("Enter the new base version (e.g., 1.2.2): ").strip()
+    base_version = input("Enter the new base version (e.g., 2.0.1): ").strip()
     if not base_version:
         print("❌ No version entered. Exiting.")
         return
 
+    firefox_version = f"{base_version}.0"
     current_dir = os.getcwd()
+    manifest_path = os.path.join(current_dir, TARGET_FILE)
+
+    # Determine what to exclude
     exclude_files = [SCRIPT_NAME] + [
         f for f in os.listdir(current_dir) if f.endswith(".xpi")
     ]
     exclude_dirs = [".git"]
 
-    # 1. Create videospeed-github.xpi
+    # Step 1: Update manifest.json on disk
+    if os.path.exists(manifest_path):
+        update_version_line(manifest_path, base_version)
+    else:
+        print(f"❌ {TARGET_FILE} not found. Aborting.")
+        return
+
+    # Step 2: Create GitHub .xpi archive
     zip_folder("videospeed-github.xpi", current_dir, exclude_files, exclude_dirs)
     print("✅ Created videospeed-github.xpi")
 
-    # 2. Prepare temporary folder
+    # Step 3: Prepare Firefox archive with version bumped to .0
     with tempfile.TemporaryDirectory() as temp_dir:
         for item in os.listdir(current_dir):
             if item in exclude_files or item in exclude_dirs:
                 continue
-            s = os.path.join(current_dir, item)
-            d = os.path.join(temp_dir, item)
-            if os.path.isdir(s):
-                shutil.copytree(s, d)
+            src = os.path.join(current_dir, item)
+            dst = os.path.join(temp_dir, item)
+            if os.path.isdir(src):
+                shutil.copytree(src, dst)
             else:
-                shutil.copy2(s, d)
+                shutil.copy2(src, dst)
 
-        # 3. Modify manifest.json version
-        manifest_path = os.path.join(temp_dir, TARGET_FILE)
-        if os.path.exists(manifest_path):
-            update_version_line(manifest_path, base_version)
+        temp_manifest = os.path.join(temp_dir, TARGET_FILE)
+        if os.path.exists(temp_manifest):
+            update_version_line(temp_manifest, firefox_version)
         else:
-            print(f"⚠️ {TARGET_FILE} not found in copied files.")
+            print(f"⚠️ {TARGET_FILE} not found in temp folder.")
 
-        # 4. Zip modified files
         zip_folder(
             "videospeed-firefox.xpi", temp_dir, exclude_files=[], exclude_dirs=[]
         )
diff --git a/manifest.json b/manifest.json
index 4a260d8..893de6a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "Video Speed Controller",
   "short_name": "videospeed",
-  "version": "1.2.2",
+  "version": "1.3.0",
   "manifest_version": 2,
   "description": "Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts",
   "homepage_url": "https://github.com/SoPat712/videospeed",