Gmail sign in is home page, I log in each time ("Remember Password" NEVER set for anything) then close browser (do not log out). When I reopen browser gmail is still open, not at the sign in home page as it should be. Before the latest upgrade to FF, all worked correctly, even it I didn't log out, it would reopen to my sign in page. FF set to automatically start in private browsing. Clear history settings all checked. Remember Passwords not checked. I have also tried setting History to never member anything, accept cookies from sites including 3rd part cookies until I close FF, and clear history (with all boxes checked in Settings) when I close FF-still opens to my email, not to the my mail sign in page. Any clues?