some websites only designed and tested under I.E. and there also some problems with cookie may cause various unpleasant experience. so do some more try, you need some more alternative, ff 4.0/3.6.x, I.E. 7/8/9, google chrome 10.x for a better browsing, mostly this kinds of problems happened in specific websites.

Thanks, I understand what you are saying. I guess what I am trying to say is I think the problem is with Firefox. I didn't have the problem before on the various sites and now I do all of a sudden. These are all sites I routinely use. It does seem to be improving and happening less often. Still it is happening.