FoxMCP

Name: FoxMCP
Author: Thinker Lee

By: Thinker Lee

Browser extension that exposes data and functions to MCP clients via WebSocket

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Features & Capabilities

FoxMCP - Browser Automation via Model Context Protocol

https://github.com/ThinkerYzu/foxmcp

A Firefox extension that enables programmatic browser control through the Model Context Protocol (MCP). Connects to a local WebSocket server to expose browser APIs for automation, testing, and AI agent integration.

Key Features

Tab Management: Create, close, switch, and list browser tabs
Navigation Control: Go to URLs, back/forward navigation, page reload
Content Access: Extract page text, HTML, and execute JavaScript
Bookmark Operations: Create, search, delete, and organize bookmarks
History Management: Query browsing history and manage entries
Window Management: Control browser windows and focus
Web Request Monitoring: Capture HTTP requests and responses

Use Cases

AI agent browser automation
Automated testing and QA
Web scraping and data extraction
Browser workflow automation
Development and debugging tools

Technical Details

Connects via WebSocket to localhost:8765
Exposes 25+ MCP tools for browser control
Compatible with any MCP client
Secure local-only connections
Real-time bidirectional communication

Installation

Requires accompanying FoxMCP server. Install extension XPI file and configure WebSocket connection to enable full browser automation capabilities.

Concerns

It may leak your privacy to remote AI model.

User Growth & Download Statistics

Add-on

By:

Thinker Lee

Daily users:

27 1

Version:

1.1.0 Last updated: 2025-10-26

Version code:

6062083

Creation date:

2025-09-29

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

32.79KB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-14

Compare stats and ranking:

Ranking

# 20,815 ▲ 216

Other rankings

#190 in scraping keyword 60 ▼ 1#234 in function keyword 17 ▲ 3

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Thinker Lee

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/foxmcp/

Website:

https://github.com/ThinkerYzu/foxmcp

Permission Change History

2025-10-26: Version 1.0.0 → 1.1.0

Add Permissions: webRequest

Is FoxMCP Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

FoxMCP requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

FoxMCP is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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