I'm using Google chrome right now and I find it faster than FF. Although FF is still important to me as an Search Engine Optimization. Simply because I can benefit with it by using some plugins and addons. But I recommend Google Chrome in browsing the net or playing application in Facebook.
I have wondered about this I will have to check it out, I like firefox over IE for sure does the google browser have tabbed browsing. That is very important to what I do online.