Who care's if Mozilla has more extensions? They cause too much trouble when you upgrade.
I do. TreeStyleTab and Pentadactyl essentially change Firefox into a different browser that I much prefer. There's nothing like that on Chrome, and until they get better capabilities for extension writing, there won't be. The day when they have working full replacements (not Vimium and the mediocre sidetabs option), I'll happily switch to Chrome, but until then I'll take having my nice customized browser.
Exactly. I switched to Chrome because of this and Chrome's better (less buggy!) Sync features.
http://blog.mozilla.com/addons/2011/04/19/add-on-compatibili...
Just thought I'd report that for my (somewhat meager) selection of addons, I haven't found anything auto-disabled or crashing yet.
Bugs like what you saw are flagged as high-importance "data loss" bugs, and FF has gotten better about avoiding those, even in pre-release builds, since the bad old days of accidentally deleting non-FF data from your home folder.
They were unstable, but I never corrupted my profile.