- Support for the HTML 5 <video> element
- Initial support for web worker threads
- You can now drag and drop tabs between browser windows
- Ability to make use of Aero “Glass” in XUL
- Support for CSS 2.1 properties: ::before and ::after, and white-space:pre-line
- Support for CSS 3 properties: -moz-border-image, word-wrap: break-word, text-shadow, box-shadow and column-rule
- Performance improvements and new preference values for color management profile support
|
Mozilla Firefox 3.1 Alpha 2 [Shiretoko] 
