Now, do I upgrade to Firefox v2.0 or not?
No doubt, my extensions will break, the appearance changes will annoy me, and it'll eat my profile. That'd be the downside in the worst-case scenario.
The upside is spellchecking in textareas and that nifty Opera-esque state restoration feature. To be honest, though, these don't really excite me: not enough for a major revision, anyway. I mean, seriously… that's extension territory, no?
At least Find-As-You-Type was supposedly fixed. Some might suggest that FAYT is extension territory too, but I'd argue that ctrl+f is fundamental to Windows GUIs. Granted, FF is cross-platform but I'm speaking from my Windows user viewpoint. Therefore, I'm willing to call FAYT a natural development of a standard feature.
Then again, I might subscribe to the thought that anything found in IE6 is 'standard' and anything else should be an extension….. which is admittedly quite a stupid concept.
I think I'll go upgrade.
(Later: smooth upgrade; the only problem was that the damn search box is now variable-width, and so won't right-align on the other side of a Flexible Space toolbar item. Grr..)