For those interested, Mozilla.org has recently made Firefox 0.9 RC available for download. The most noticeable difference is the new default theme. Most of the other changes are subtle and relate to performance, stability, and usability enhancements.
As with all pre-release software, if you plan to use this new version please do NOT install it over your existing FireFox installation. You will be begging for problems if you do. Remove your existing version and install it cleanly into a new location on your hard drive.