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claude-in-chrome-troubleshooting

Diagnose and resolve Claude Chrome MCP extension connectivity conflicts via native messaging host configuration.

Updated Feb 13, 2026
Search Tags:#troubleshooting#claude#extension#chrome#connectivity#native messaging
One-click install
npx skills add https://github.com/fjor1025/InfoSec-Framework --skill claude-in-chrome-troubleshooting-fjor1025
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: claude-in-chrome-troubleshooting
Source: https://github.com/fjor1025/InfoSec-Framework/tree/main/ClaudeSkills/plugins/claude-in-chrome-troubleshooting/skills/claude-in-chrome-troubleshooting
Command: npx skills add https://github.com/fjor1025/InfoSec-Framework --skill claude-in-chrome-troubleshooting-fjor1025

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This skill resolves issues where the Claude browser extension fails to connect or behaves erratically, specifically addressing conflicts between Claude.app and Claude Code CLI.

Core Features & Use Cases

  • Diagnose Connectivity Issues: Identifies and resolves "Browser extension is not connected" errors.
  • Resolve Conflicts: Manages the native messaging host conflict between Claude.app (Cowork) and Claude Code CLI.
  • Use Case: If your Claude Code CLI tools report that the browser extension is not connected, even though Claude.app is running, this skill provides the steps to re-establish the connection by disabling the conflicting host.

Quick Start

Run the chrome-mcp-toggle command to switch between Claude.app and Claude Code CLI configurations.

Frequently Asked Questions about claude-in-chrome-troubleshooting

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Why does the Claude Chrome extension say it is not connected when Claude.app is running?▼

The Claude Chrome extension loses connectivity when a native messaging host conflict exists between Claude.app and Claude Code CLI. Diagnosing the native messaging host configurations resolves the connection error.

How do I fix native messaging host conflicts between Claude.app and Claude Code CLI?▼

Run the chrome-mcp-toggle command to switch native messaging host configurations, disabling the conflicting host to re-establish browser automation connectivity for the active application.

Does troubleshooting the Claude Chrome extension connectivity require macOS?▼

Yes, resolving the Claude Chrome extension connectivity conflict requires a macOS environment to perform specific file path manipulations and execute shell commands for configuration toggling.

How do I switch the Claude browser extension from Claude.app to Claude Code CLI?▼

Execute the chrome-mcp-toggle shell command to manage native messaging host configurations, switching the active browser automation connection between Claude.app and Claude Code CLI.

What causes browser automation errors in the Claude Chrome MCP extension?▼

Browser automation errors in the Claude Chrome MCP extension are caused by conflicting native messaging host configurations when both Claude.app and Claude Code CLI attempt to manage the connection.

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