Browser for AI Agent by mantou132

Let AI agents read and control browser tabs through MCP.

About this extension

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:

Read active tab content, title, URL, page errors, and localStorage
Access cookies for browser automation tasks explicitly requested by the user
Execute scripts in tabs or in the extension background
Manage and call toolsets for repeatable web automation workflows
Support page-provided tools through WebMCP
Subscribe to community or custom toolsets

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.

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Permissions and data

Required permissions:

Exchange messages with programs other than Firefox
Access browser tabs
Access your data for all websites

Optional permissions:

Read and modify bookmarks
Clear recent browsing history, cookies, and related data
Download files and read and modify the browser’s download history
Access browsing history
Display notifications to you
Access recently closed tabs
Access browsing history
Access browser activity during navigation
Access your data for all websites

Data collection:

The developer says this extension doesn't require data collection.