Chrome extension not connecting on Windows

Resolved 💬 11 comments Opened Feb 4, 2026 by chris-nmn-ouyang Closed Mar 26, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

Environment:

  • Windows Version: 10.0.26100.7623
  • Claude Code Version: 2.1.31
  • Chrome Version: [check chrome://version]
  • Extension Version: [check chrome://extensions]

Issue:
The Chrome browser extension is installed and visible in the toolbar, but Claude Code CLI cannot connect to it.
tabs_context_mcp always returns "Browser extension is not connected."

What Should Happen?

Should connect to Chrome!

Error Messages/Logs

Steps to Reproduce

Steps to reproduce:

  1. Install Claude Code via npm (npm install -g @anthropic-ai/claude-code)
  2. Install Chrome extension from Chrome Web Store
  3. Restart Chrome
  4. Run Claude Code and attempt to use Chrome integration

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.31

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_

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