I have a serverfault and superuser account, and on firefox I go to either, and I'm logged in automatically, no username or password prompt.
On a new browser, I attempt to login, and I'm prompted to log in with stackexchange, google, yahoo, myopenid or facebook.
I thought my account was directly with stackexchange, but was informed, "No account with this email found". I tried this on firefox on other stackexchange sites, and received the same message.
I didn't think I used google for my login, but tried, and it prompted me to make a new account.
I don't have a yahoo account.
I attempted to login via myopenid (again didn't think I ever used it, but tried), and no login by my name or email address was found.
As for facebook, I never use that for authentication either.
So what happened? Why can't I log into my account from a new browser, or any other stackexchange sites from firefox?