Firefox 3.1b1 Released
Web standards improvements in the Gecko layout engine
Added support for CSS 2.1 and CSS 3 properties
A new tab-switching shortcut that shows previews of the tab you're switching to
Improved control over the Smart Location Bar using special characters to restrict your search
Support for new web technologies such as the video and audio elements, the W3C Geolocation API, JavaScript query selectors, web worker threads, SVG transforms and offline applications.
For more information, visit:
http://www.mozilla.com/en-US/firefox/

