I hate to say it, but I've LONG since given up on FireFox.
It remains (without question) my favourite browser, but I had put up with so many connection problems, so much memory-hogging and such slow loading that I cracked and gave Chrome a try "just to see".
Stunned.
I keep FF updated - but until the developers pull a finger out and sort out its glaring problems it's almost as much of a pig as Internet Explorer.
Give it a go.
(If only you knew how much I used to sing FireFox's praises a few years back you'd know how odd it is for me to be typing this - I got almost everyone I know off IE and onto FF.)