Fixed Safari Extension Build Issues | Generated by AI

Home 2026.05

Done. Here’s what happened:

======================================================== FIXED ========================================================

  1. Recreated missing TabsKiller Extension/ directory:
    • SafariWebExtensionHandler.swift
    • Info.plist (extension bundle config)
    • Resources/ (all web extension files)
  2. Fixed bundle ID case mismatch:
    • Was: com.lzw.tabskiller.Extension (lowercase)
    • Now: com.lzw.TabsKiller.Extension (matches pbxproj)

  3. Built successfully via xcodebuild

  4. Installed to stable path: /Applications/TabsKiller.app/Contents/PlugIns/TabsKiller Extension.appex

======================================================== WHAT TO DO NOW ========================================================

Open Safari → Settings (⌘,) → Extensions tab → enable “TabsKiller Extension”.

The extension will NOT disappear anymore because the .appex is at /Applications/ (stable) instead of DerivedData (ephemeral).

======================================================== REMEMBER ========================================================

Every time you rebuild from Xcode, also run:

cp -R ~/Library/Developer/Xcode/DerivedData/TabsKiller-*/Build/Products/Debug/TabsKiller.app /Applications/

Or just build with xcodebuild + copy in one shot:

cd ~/projects/tab-killer/safari-tab-killer &&
xcodebuild -scheme TabsKiller -configuration Debug build &&
rm -rf /Applications/TabsKiller.app &&
cp -R ~/Library/Developer/Xcode/DerivedData/TabsKiller-*/Build/Products/Debug/TabsKiller.app /Applications/

======================================================== COMMIT THE MISSING FILES ========================================================

The TabsKiller Extension/ directory was never in git. You should commit it:

git add safari-tab-killer/TabsKiller\ Extension/ git commit -m “add missing Safari extension target files”

Back Donate