Firefox has been my sole browser for years, even though it's always had little irritating issues.Because the plugins and flexibility are so useful I've never really used Safari or Opera or any of the other browsers for mac (although I've tried quite a few out). However, about 5 months ago I decided to switch over to Chrome, just to see if I could get used to it. I found that, in fact, I got used to it very quickly. There are a few little FF functions that bring me back and, because they are particularly important now, I decided to move back to FF. Here, as my kids would say (well versed in Pee-Wee Hermanisms), is my big BUT: FF is just impossible to use. 10.0.2 stutters on who knows what and drags to a deathly crawl if it's been open for a few hours. Right now I'm running a test: a brand new user profile, no plugins, downloading two large files (100MB & 250 MB). It's been open 25 mins and is consuming 266 MB of real memory, 100 MB of private memory, and between 1.8 and 16 (!) GB of virtual memory. Chrome, which I'm using now, has two windows open with about 15 tabs open in each window. It is consuming 166 MB or real mem, 100 of private mem, and 250 of virtual mem. Is there a fix in sight for Firefox or is it a lost cause? There are so many things I dislike about Chrome (mostly that it's owned by Google), but functionality isn't one of them. I'd really like to go back to FF, but it seems less and less able to function.