Firefox is now in unstable branch and I am using it at this moment.
This is, undeniably, the fastest browser I've ever used. Even my Windows buddies agree -- it blows IE out of the water. Some minor improvements over .7 most notably the download manager. The extensions work in Linux and I've added a few from the extensive list already.
Overall, Firefox is a great browser and worth the effort of an upgrade if only for the speed improvements. Now if they'd only make a QT version ...
Please add your thoughts.