Two days ago I switched my browser from IE to Firefox. Every thing worked fine as far as getting into Cubits and ATP till today. Each time I return here I now have to log in again. Any advice as to what I should do ?

If your browser is forgetting your cookies, that will log you out.

So if you installed any addons or have any preference option to forget cookies then that'll do it.

Thanks Dave, I do not think I did any of that. I might have fixed it just now. I changed the 'never remember history' to 'remember history' and I did not have to log in. I had changed that last night so maybe it was my fault.

Yep, I bet that fixes it. The forgetting the history would probably include cookies.

Good I finally figured something out ! Thanks Dave.