Firefox 2.0 hit RC2 (release candidate 2) a few days ago. In noob-speak, this means Firefox 2.0 is probably going to be hitting the virtual shelves sometime within a month. I’ve been using it the 2.0 builds at home for a couple of months now, and I haven’t had any issues except for extensions not working. Ars Technica has a nice overview of what 2.0 has. I agree with the reviewer: spellcheck alone is worth the upgrade. This was one thing I’ve been wanting for a while, especially since other OS X browsers like Safari and Camino have it supported natively. If you do use a lot of extensions, you may want to hold off on upgrading. I had to dump all of my extensions and switch to a different adblocking extension. Annoying, but that’s the price I pay for being on bleeding edge of awesome.