Well said. Firefox 3's "AwesomeBar", well, isn't for a lot of people. I know it's easy to disable (OK, cripple by setting its results enumeration to 0) but it's much easier for me to simply stick with what works. Besides, on my chosen platform, the system-wide plugin location is set to a non-standard prefix and it takes much piddling about with symlinks to get them working properly. The first version of Fx3 also somehow broke /home over NFS, which made it completely unusable. Fx2, OTOH, performs perfectly on make install.
@James: Change for change's sake is not good. That's not to say if you like Fx3 and its new UI, you're somehow odd; if it works for you, fine, but don't force your tastes on the rest of us and ridicule us when we make an informed, reasoned and conscious choice. That's what religions do and I think we're all very aware of where that leads. The capitalists love that mindset, of course. Unthinkingly grabbing the latest of everything makes you an ideal consumer.