Firefox 3.5 was just released. It promises to be much better then the old version.
– Available in more than 70 languages.
– Support for the HTML5 video and audio elements including native support for Ogg Theora encoded video and Vorbis encoded audio.
– Improved tools for controlling your private data, including a Private Browsing Mode.
– The ability to share your location with websites using Location Aware Browsing.
– Support for native JSON, and web worker threads.
– Improvements to the Gecko layout engine, including speculative parsing for faster content rendering.