Hi all yep, leave my laptop running browser on tabs open, go away make cup of tea, (whatever) come back after say 5/10 minutes click a tab, on the bar top of the screen i get "Firefox not responding" after about a minute firefox sorts itself out and all is ok. It remains OK if i continue to use, but as soon as I leave it and come back its "Not responding. I have changed a profile file to .old (cant find the link on how to do that as sometimes when firefox restarts i loose all history) any help please folks??