claude-in-chrome-troubleshooting
Diagnose and fix Claude in Chrome MCP extension connectivity issues. Use when mcp__claude-in-chrome__* tools fail, return "Browser extension is not connected", or behave erratically.
Claude in Chrome MCP Troubleshooting
Use this skill when Claude in Chrome MCP tools fail to connect or work unreliably.
When to Use
mcp__claude-in-chrome__*tools fail with "Browser extension is not connected"- Browser automation works erratically or times out
- After updating Claude Code or Claude.app
- When switching between Claude Code CLI and Claude.app (Cowork)
- Native host process is running but MCP tools still fail
When NOT to Use
- Linux or Windows users - This skill covers macOS-specific paths and tools (
~/Library/Application Support/,osascript) - General Chrome automation issues unrelated to the Claude extension
- Claude.app desktop issues (not browser-related)
- Network connectivity problems
- Chrome extension installation issues (use Chrome Web Store support)
The Claude.app vs Claude Code Conflict (Primary Issue)
Background: When Claude.app added Cowork support (browser automation from the desktop app), it introduced a competing native messaging host that conflicts with Claude Code CLI.
Two Native Hosts, Two Socket Formats
| Component | Native Host Binary | Socket Location |
|---|---|---|
| Claude.app (Cowork) | /Applications/Claude.app/Contents/Helpers/chrome-native-host | /tmp/claude-mcp-browser-bridge-$USER/<PID>.sock |
| Claude Code CLI | `~/.local/share/claude/versions/ |
Subscribers only
The full skill, its 1 bundled files and every download is included with every paid Complete AI plan.
Details
| Source | community |
|---|---|
| License | — |
| Risk label | critical ("critical" means the skill may run commands or touch files — read before use) |
| Files | SKILL.md |
| Added | 2026-09-04 |
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