All my tabs (I think they're tabs - on the menu bar just below the main menu at the top left of the home screen - have disappeared. I checked history, hoping to replace them and the returned. But now they've vanished again. Also, when FF opens, email screen displayed is 'primary' and it says there are no primary messages. I've always used 'all mail' so I go to that site (which is in a folder on the menu which is below the address bar) and click on it to get to mail. How can I restore the missing tabs which were on the menu bar just above the address bar? Many thanks. DMS