The two magic numbers of the day are 5 and 3, and after PHP 5.3, Firefox 3.5 have just been released. Firefox 3.5 aims to be the Fastest browser ever, a Sunspider test on windows xp machine show only 1,524ms compared to FF2 and FF3 with respectively 18,148ms and 3,669ms, and I guess there is need to compare to other browsers.
Major new features in Firefox 3.5 are :

  • 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.
  • Better web application performance using the new TraceMonkey JavaScript engine.
  • 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.
  • Support for new web technologies such as: downloadable fonts, CSS media queries, new transformations and properties, JavaScript query selectors, HTML5 local storage and offline application storage, canvas text, ICC profiles, and SVG transforms.

There are already 1,2 Million Firefox 3.5 Download, so you can also join the fun and upgrade here http://www.firefox.com.