Please help I uninstalled the Firefox browser for a while then I returned to it I remember my account and the password ... it proceeded but just I pressed to finish a message came out

Primary account email required for sign-in  ? I did not create another account And even I created I know of my email addresses and all I tried but not succeeded. Please help I need to restore all of my saved passwords This account I use now I created just five minutes ago This one is not able to restore my passwords please help Is it my old account has been stolen by someone ? I never faced with such a problem Many times I uninstalled the browser then I log in and complete the syncing