If you're using the Firefox 2.0 betas, you might want to grab the RC3 release which came out today
. Supposedly out for release before the end of the year, 2.0 has some pretty snazzy new features that are worth any users time, such as better add-ons support, better tabbing and more. You can take a look at the roadmap and plan for 2.0 at Mozilla's site
, and download it from here
. It's still in beta, so keep that in mind if you are relying on Firefox as your browser, though so far I've had great success with it. Mozilla's dev calendar still does not have a set release date for 2.0, but given that the RC stage is already here it shouldn't be much longer.