Here. This is the Better Privacy addon. It will remove so-called "flash cookies". Flash cookies are persistent, and are recreated no matter what browser or operating system is used (i run Open SuSE 11.1). This extension removes those cookies when the browser is closed.
i don't know what email service you use, but they may be using a flash cookie to log you.
I fixed it and I must admit, I feel like a fool.
I restarted my computer and that seemed to do the trick as when I get back into FF, my email, FB, and other items all need the passwords which is a good thing.
Thanks for your help.