claude-in-chrome-troubleshooting — Skills

What it does

mcpclaude-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

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 in chrome troubleshooting

Source

Repository: https://github.com/trailofbits/skills

claude-in-chrome-troubleshooting FAQ

What does the claude-in-chrome-troubleshooting skill do?

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. mcpclaude-in-chrome tools fail with "Browser extension is not connected" Browser automation works erratically or times out

What does claude-in-chrome-troubleshooting require?

Configuration keys: USER, TMPDIR, CONFIG_DIR, CLAUDE_APP, CLAUDE_CODE, HOME, LATEST.

How do I install claude-in-chrome-troubleshooting?

Run: npx -y skills add https://github.com/trailofbits/skills --skill claude-in-chrome-troubleshooting --agent claude-code — the source lives at github.com/trailofbits/skills.

Maintain claude-in-chrome-troubleshooting?

Let people know it's listed here — add the badge (live metrics, light/dark aware) or a plain link to your README or docs.

[claude-in-chrome-troubleshooting on getagentictools](https://getagentictools.com/skills/trailofbits-skills-claude-in-chrome-troubleshooting?ref=badge)

npx agentictools info skills/trailofbits-skills-claude-in-chrome-troubleshooting

The second line is the CLI lookup for this page — handy in READMEs and docs.