Firefox 2.0

[Cadaverous Pallor]

Your post prompted me to download it - there's some cool new features.

Improved tabbed browsing: By default, Firefox will open links in new tabs instead of new windows, and each tab will now have a close tab button. Power users who open more tabs than can fit in a single window will see arrows on the left and right side of the tab strip that let them scroll back and forth between their tabs. The History menu will keep a list of recently closed tabs, and a shortcut lets users quickly re-open an accidentally closed tab.

I also had a look at add-ons and went with the download statusbar and Adblock Plus. We'll see how they pan out.