Usable-browser-agent MCP Server

MCP server and Firefox add-on that let an AI agent drive your real, logged-in browser. Free tier.

Local serverstdio

What is the Usable-browser-agent MCP Server?

Usable-browser-agent is an MCP integration. MCP server and Firefox add-on that let an AI agent drive your real, logged-in browser. Free tier.

Packages and local setup

The published npm package is usable-browser-agent, version 0.7.1. Its declared MCP transport is stdio.

The package declares UBA_PORT: Local WebSocket port the browser extension connects to (default 8876)..

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.7.1 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

Browse related browser automation MCP servers for tools that cover the same kind of work.

Configuration

VariableDescriptionRequired
UBA_PORTLocal WebSocket port the browser extension connects to (default 8876).Optional