# Browser for AI Agent

> Let AI agents read and control browser tabs through MCP.

Canonical page: [https://chrome-stats.com/d/browser-for-ai-agent](https://chrome-stats.com/d/browser-for-ai-agent)

## Overview

- **ID:** `browser-for-ai-agent`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** mantou132
- **Category:** other
- **Daily users:** 12
- **Weekly downloads:** 4
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 0.2.5
- **Last updated:** 2026-08-29
- **First published:** 2026-05-21
- **Size:** 4.31 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/browser-for-ai-agent/)
- **Website:** [https://github.com/mantou132/browser4agent](https://github.com/mantou132/browser4agent)

## Description

Browser for AI Agent is a browser extension for AI agents. It connects to a local Native Messaging Host and exposes an MCP service, allowing MCP-compatible AI agents to read browser tab content, inspect tab information, and call page tools in the user’s browser environment.

Features:
<ul><li>Read active tab content, title, URL, page errors, and localStorage</li><li>Access cookies for browser automation tasks explicitly requested by the user</li><li>Execute scripts in tabs or in the extension background</li><li>Manage and call toolsets for repeatable web automation workflows</li><li>Support page-provided tools through WebMCP</li><li>Subscribe to community or custom toolsets</li></ul>
All capabilities are exposed through a local MCP service configured by the user. The extension does not sell user data or use it for advertising. Only connect trusted AI agents and subscribe to toolsets from trusted sources.

## Rankings

- #30,654 — Overall
- #32 — agent
- #88 — agenda
- #194 — browser
- #199 — browser tab

## Permissions and access

### Permissions

- `nativeMessaging`
- `sidePanel`
- `storage`
- `contextMenus`
- `tabs`
- `activeTab`
- `scripting`
- `cookies`
- `alarms`
- `notifications`
- `tabGroups`
- `downloads`
- `history`
- `bookmarks`
- `topSites`
- `browsingData`
- `sessions`
- `webNavigation`
- `webRequest`
- `search`
- `debugger`
- `offscreen`
- `pageCapture`
- `favicon`

### Host permissions

- `<all_urls>`

### Content script matches

- `*.feishu.cn`
- `<all_urls>`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows for debugging of other web apps and extensions, which can intersect with sensitive information and security boundaries.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Browser Control MCP](https://chrome-stats.com/d/browser-control-mcp) — 1,423 users, 5.00 / 5
- [Browser Agent](https://chrome-stats.com/d/browser-agent) — 1 users
- [Open Browser Control](https://chrome-stats.com/d/open-browser-control) — 26 users, 5.00 / 5
- [Browser MCP](https://chrome-stats.com/d/browser-mcp) — 77 users
- [Browserpilot](https://chrome-stats.com/d/browserpilot) — 2 users
- [BrowserBot - AI Automation](https://chrome-stats.com/d/browserbot-ai-automation) — 6 users, 1.00 / 5
- [Browserfly - AI Agent in browser](https://chrome-stats.com/d/browserfly-ai-agent-in-browser) — 44 users, 5.00 / 5
- [Nanobrowser:AI Web Agent](https://chrome-stats.com/d/nanobrowser-ai-web-agent) — 36 users
- [FoxMCP](https://chrome-stats.com/d/foxmcp) — 37 users, 5.00 / 5
- [AutoDOM](https://chrome-stats.com/d/autodom) — 1 users
- [Blueprint MCP for Firefox](https://chrome-stats.com/d/blueprint-mcp-for-firefox) — 83 users, 5.00 / 5
- [Element to LLM MCP](https://chrome-stats.com/d/element-to-llm-mcp) — 5 users, 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/browser-for-ai-agent)