Hi, thanks. Yeah, Ff is 3.5.4.
My Ff privacy tab defaults to Remember history so there's no visible settings. If I change that to Use custom settings for history, everything is checked except Auto start in private browsing, and Clear history when closing. All that looks like standard and default settings. Quitting firefox and reopening it, the Privacy tab reverts to Remember history.
I added apple.com as a blocked site for cookies (Priv tab, Use custom settings, exceptions). That seems to help. I don't know if there'll be any bad repercussions though. But at least I can get some work done.
Hmmm...