I installed it this morning and was left with the same feelings of disappointment and existential ennui as “someone” at Ace’s place. No obvious differences in performance or functionality that I’ve noticed (although I should note I’ve never had a memory leak problem with v2), but that is one honking big dropdown menu in the address bar. I’m curious what our geek readers think. The upgrade is obligatory if you’re already a Firefox user but is there anything in the new release warranting a switch from, say, Safari? Here’s the full list of new features for easy cross-checking; I’m convinced that my iPhone fanboy-ism has spoiled me for new releases of other tech products, as anything short of revelatory improvements is bound to seem like a letdown.