## Description The Claude browser extension is installed and enabled in Chrome, but Claude Code CLI cannot connect to it. The `tabs_context_mcp` tool consistently returns "Browser extension is not connected." ## Steps to Reproduce 1. Install the Claude browser extension from https://claude.ai/chrome 2. Confirm the extension is enabled in `chrome://extensions` 3. Start Claude Code CLI 4. Attempt to use browser automation tools (e.g., `tabs_context_mcp`) ## What I Tried - Restarting Chrome (f

Chrome extension not connecting to Claude Code CLI

Status Closed — duplicate

Maintainer reply None cached

Activity 3 comments · opened Jan 30, 2026 · closed Feb 2, 2026

Description

The Claude browser extension is installed and enabled in Chrome, but Claude Code CLI cannot connect to it. The tabs_context_mcp tool consistently returns "Browser extension is not connected."

Steps to Reproduce

Install the Claude browser extension from https://claude.ai/chrome
Confirm the extension is enabled in chrome://extensions
Start Claude Code CLI
Attempt to use browser automation tools (e.g., tabs_context_mcp)

What I Tried

Restarting Chrome (full close and reopen)
Verifying the extension is installed and enabled
Multiple connection attempts from the CLI

Environment

Platform: Windows
Tool: Claude Code CLI (Opus 4.5)

Expected Behavior

The extension should connect and return tab context information.

Actual Behavior

Every call returns: "Browser extension is not connected. Please ensure the Claude browser extension is installed and running."

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