Chrome extension not connecting to Claude Code on Windows
Status Closed — not planned
Maintainer reply None cached
Activity 4 comments · opened Jan 31, 2026 · closed Mar 1, 2026
The Claude in Chrome browser extension is not connecting to Claude Code CLI. The connection attempt consistently returns the error message: "Browser
extension is not connected."
Environment:
- OS: Windows
- Claude Code CLI: Latest version
- Chrome extension: Installed and enabled
Steps to Reproduce:
- Install Claude in Chrome extension
- Ensure extension is enabled in chrome://extensions/
- Open Claude Code CLI
- Run /chrome command
- Attempt to use any browser automation tool (e.g., tabs_context_mcp)
Expected Behavior:
The extension should connect and return available browser tabs.
Actual Behavior:
Returns error: "Browser extension is not connected. Please ensure the Claude browser extension is installed and running."
Troubleshooting Attempted:
- Verified extension is installed and enabled
- Refreshed the extension
- Restarted Chrome completely
- Checked extension icon in toolbar (no errors visible)
Additional Context:
The extension appears to be functioning normally in Chrome (no errors shown), but Claude Code cannot establish a connection to it.
This issue has 4 comments on GitHub. Read the full discussion on GitHub ↗