Selenium Remote Control (SRC) is a test tool that allows you to write
automated web application UI tests in any programming language against any
HTTP website using any mainstream JavaScript-enabled browser. SRC provides
a Selenium Server, which can automatically start/stop/control any supported
browser. It works by using Selenium Core, a pure-HTML+JS library that
performs automated tasks in JavaScript; the Selenium Server communicates
directly with the browser using AJAX (XmlHttpRequest).

http://www.openqa.org/selenium-rc/

This module sends commands directly to the Server using simple HTTP
GET/POST requests. Using this module together with the Selenium Server, you
can automatically control any supported browser.