MCP server + installer for the free tier of Usable Browser Agent, matching the commercial 0.7.0 build. Install the Firefox extension from https://addons.mozilla.org/firefox/addon/usable-browser-agent-free/ then unpack this zip and run node bin/uba-install.mjs. Personal, non-commercial use and evaluation only (LICENSE.txt); commercial license: https://savvytechsphere.com/usable-browser-agent