[BUG] Claude-in-Chrome MCP: tabs_create_mcp creates tabs but never navigates, all interaction tools return "No tab available"

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?

• tabs_context_mcp lists tabs correctly
• tabs_create_mcp creates new tabs but they stay on chrome://newtab/ — the URL parameter is ignored
• navigate, computer, javascript_tool, read_page, find, get_page_text all return "No tab available" for every tab ID
• Even manually opened tabs that appear in tabs_context_mcp can't be interacted with
• The background script can see Chrome tabs but the content script never injects
• Resetting MCP (/mcp -reset), refreshing tabs, and /chrome don't fix it
• Platform: Linux, Chrome browser

What Should Happen?

I usually works well, but this issue is for last 5 hours

Error Messages/Logs

Error: No tab available

Steps to Reproduce

connecting and using it in claude terminal

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude Code v2.1.81

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Cursor

Additional Information

_No response_