Yesterday 30/06/2009, one of the most famous internet browser, and my favourite browser, released a new version 3.5 and becomes one of very first browser supports HTML 5 <video> and <audio> tag.

Following is the new features in FF 3.5 release note.

    *  Available in more than 70 languages. (Get your local version!)
    * Support for the HTML5 <video> and <audio> elements including native support for Ogg Theora encoded video and Vorbis encoded audio. (Try it here!)
    * 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. (Try it here!)
    * 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.

I have already downloaded and installed the new version, to be honst, you cannot really tell any different, and there are only few HTML 5. The Video Bay may be the most popular one because of the success of its founder TPB.