[Claude in Chrome] Tab groups not cleaned up after session ends

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?

Each browser automation session creates a new Chrome tab group, but the group is never removed when the session ends. Over multiple sessions, stale empty groups pile up in the tab bar and must be deleted manually.

Tab groups persist indefinitely until manually closed.

What Should Happen?

Tab group (and its tabs) should be removed automatically when the Claude Code session ends.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Code and use any browser automation (e.g., ask Claude to open a webpage)
2. End the session / close Claude Code
3. Check Chrome's tab bar — the tab group created during the session is still there
4. Repeat with a new session — another stale group accumulates

Claude Model

_No response_

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.179

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

<img width="598" height="260" alt="Image" src="https://github.com/user-attachments/assets/bfbc022f-cde0-41b0-8dad-c6ea3f22d0d3" />