FF 3.1 beta 3 is out.
[EDIT] It isn't hidden any more. Simply go here to download it.
Changelog :
- This beta is now available in 64 languages - get your local version.
- Improved the new Private Browsing mode.
- Improvements to web worker thread support.
- Improved performance and stability with the new TraceMonkey JavaScript engine.
- New native JSON support.
- Improvements to the Gecko layout engine, including speculative parsing for faster content rendering.
- Support for new web technologies such as the <video> and <audio> elements, the W3C Geolocation API, JavaScript query selectors, CSS 2.1 and 3 properties, SVG transforms and offline applications.