Why I love Firefox

I'm sitting here playing around with Firefox 2.0 beta 2. I think I may have mentioned how bored I am. Anyways, a bunch of stuff I had downloaded to work with Firefox 1.5 doesn't work with the new version. I was looking for extensions to replace what I lost when I found the Tab Killer extension which "disables tabbed browsing features in Firefox completely." My only question is, "why would you want to do that?"