Last Friday Mozilla kept to its promise and shipped the first beta of Firefox 5.
Here's a 'what's new' listing:
Added support for CSS animations
Added support for switching Firefox development channels
The Do-Not-Track header preference has been moved to increase discoverability
Improved standards support for HTML5, XHR, MathML, SMIL, and canvas
Improved spell checking for some locales
Improved desktop environment integration for Linux users
Note: Google's Chrome and Apple's Safari browser both support CSS animations.
There are also a whopping number of bug and stability fixes, detailed here.
Contrary to some report that say that the Firefox 5 user interface is identical to that of Firefox 4, there are, in fact, some small changes. Mozilla's Director of Community Development Asa Dotzler details a few changes: