# Claude In Chrome Troubleshooting

> Perform claude in chrome troubleshooting assessment during authorized security testing. Use this skill when indicators of the vulnerability class are

- Skill: `wufufu770/claude-in-chrome-troubleshooting` (Agent Skill)
- Install (CLI): `npx skillmds@latest add wufufu770/claude-in-chrome-troubleshooting`
- Raw SKILL.md: https://api.skillmd.com/api/skills/wufufu770/claude-in-chrome-troubleshooting/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- License: Apache-2.0
- Author: wufufu770 (https://skillmd.com/u/wufufu770)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/wufufu770/claude-in-chrome-troubleshooting

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## TL;DR

- **目的**：Perform claude in chrome troubleshooting assessment during authorized security testing. Use this skill when indicators of the vulnerability class are 
- **适用**：通用
- **输入**：目标信息
- **输出**：执行结果 + 证据
- **红线**：仅限授权范围内；扫描限速 -c 10 -rl 10；所有动作记 oplog
- **关联**：上游：所有 2-web-vulns skill → 下游：003-src-session-start



*Original skill by [@jeffzwang](https://github.com/jeffzwang) from [@ExaAILabs](https://github.com/ExaAILabs). Enhanced and updated for current versions of Claude Desktop and Claude Code.*


## When to Use

- Target presents indicators of the vulnerability class this skill covers
- Fingerprint or recon indicates the relevant technology stack is in use
- Authorized testing scope covers the target endpoint or component
- Findings need to be validated through this skill's methodology


## Diagnostic Workflow

1. **Check Chrome extension status** — Navigate to `chrome://extensions/` and verify Claude extension is enabled
2. **Verify MCP server** — Open Claude Desktop → Settings → Developer → Check MCP servers
3. **Test connection** — Use `mcp__claude-in-chrome__*` tools (e.g., `screenshot`) to verify connectivity
4. **Check console** — Open Chrome DevTools (F12) → Console tab for errors
5. **Restart if needed** — Disable/enable extension, restart Claude Desktop

## Common Issues

- **"Browser extension is not connected"** — Extension was disabled or browser was restarted without extension
- **"Permission denied"** — Chrome permissions for the site need to be granted
- **"Tab not found"** — Tab was closed before tool call
- **"Timeout"** — Network issues or browser is frozen

## Fallback Strategy

If Claude in Chrome MCP is unavailable:
1. Use `mcp__playwright` for browser automation (alternative MCP)
2. Use `curl` + `jq` for direct HTTP testing
3. Use Burp Suite with manual browser testing


## When NOT to Use

- Target is clearly outside this skill's scope (refer to related skills)
- No authorization for testing
- Need a different category of testing (use related skills)