If you go here https://www.facebook.com/settings?tab=applications https://www.facebook.com/settings?tab=applications you can see all your logins. You can migrat

If you go here https://www.facebook.com/settings?tab=applications https://www.facebook.com/settings?tab=applications you can see all your logins. You can migrate each login, one by one, using an app like 1Password to generate new passwords that you don't have to remember.