Chrome extension not working

Open 💬 1 comment Opened Jun 4, 2026 by kfacteau6

please email me to help kfacteau6@gmail.com

What happened

Claude Code cannot connect to the Chrome extension. Every call to tabs_context_mcp (including with createIfEmpty: true) returns:

▎ Browser extension is not connected. Please ensure the Claude browser extension is installed and running, and that you are logged into claude.ai with
▎ the same account as Claude Code.

This persists across multiple retries.

Steps to reproduce

  1. Install/enable the Claude extension in Chrome
  2. In Claude Code, attempt any browser tool (e.g., tabs_context_mcp)
  3. Connection fails with the "not connected" message

Troubleshooting already tried

  • Confirmed the extension is present and enabled at chrome://extensions
  • Fully quit (Cmd+Q) and reopened Chrome
  • Retried the connection multiple times
  • Logged into claude.ai in Chrome with the same account as Claude Code

Expected

tabs_context_mcp returns the current tab group so browser automation can proceed.

Actual

Persistent "Browser extension is not connected" error; no tabs are ever returned.

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