Mozilla released the twelfth beta for Firefox 4.0 on February 25th. This is a regular beta release and is being made available for testing purposes only.
New stuff in this Beta 12 release:
- Increased performance while viewing Flash content
- Improved plugin compatibility with hardware acceleration enabled
- Hovering over links now displays the URL at the bottom of the window rather than in the location bar
- General stability, performance, and compatibility improvements
- See the complete changelist from the previous beta
For more info see the release notes for Firefox 4 Beta 12. The next planned release is the Release Candidate (RC) 1 (or Beta 13).