Looking for help trying to log back in to my existing email account after a crash. When I log into Thunderbird, I first have to enter a primary password which I never had to do before. Once this is entered, a box pops up saying "Set Up Your Existing Email". I enter my name, email address and password, then my configurations are verified. I believe it might be an old password but I don't see anywhere to reset the password. How do I reset a password and get in to my existing account?