Chrome extension installed, enabled, service worker running — still shows Not connected

Status Open
Maintainer reply None cached
Activity 0 comments · opened Aug 25, 2026

Environment:

  • OS: Linux Mint 22.3
  • Chrome version: 151.0.7922.173
  • Claude for Chrome extension version: 1.0.85, ID fcoeoabgfenejglbffodgkkbkcdhcgfn

Steps taken:

  1. Installed extension from claude.ai/chrome
  2. Confirmed in chrome://extensions: extension present, enabled, service worker running
  3. Native messaging host manifest present and correct at ~/.config/google-chrome/NativeMessagingHosts/com.anthropic.claude_code_browser_extension.json, pointing to an existing executable ~/.claude/chrome/chrome-native-host (chmod +x)
  4. Fully restarted Chrome (quit all windows, relaunched) — no change
  5. Retried tabs_context_mcp / connection check multiple times over ~10 minutes — always returns "Browser extension is not connected"

Expected: Claude Code CLI should connect to the running, enabled extension.
Actual: Persistent "Browser extension is not connected" error despite extension appearing healthy in chrome://extensions.

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