Check out the new Firefox 3.6 RC1

Tired of your current browser? The new Firefox 3.6. might be for you. Sporting a 7.7 MB download that runs on the well-tested Gecko 1.9.2 web-rendering platform, bringing support for new web technologies, better speed, stability, faster startup and load times, as well as improved JavaScript performance. Where new features are concern, Personas is the perhaps the most interesting one. It allows users to change the appearance of the browser with just one click. The new Firefox will alert you when your plug-ins are out dated and it is optimized for small device operating systems such as Windows CE and Maemo. On the down side, however, it lacks several of the features found on other browsers such as Google Chrome and IE8. Source: http://mashable.com/2010/01/11/firefox-3-6-rc1/