Version 28 of Firefox Beta. Been on Beta for a few years now and found it better than the regular Firefox.
I clear cache and temp files every day, often more than once per day. Memory, that could be an issue but it doesn't show everywhere. I only have 1 gig memory and that is all this computer will take.
This site and eBay are the two pages/sites I have the most issue with. Always a bunch of crap that is downloading in the background like this googleapis stuff, eBay static something or other, google.ads.doubleclick. net . . . stuff like that I always sit here and stare at the browser telling me it is connecting to something or is downloading something.