updating my profile i found option of 2nd factor notification that I use always when offered. it asked me to make up my own unique code that no one else would have so i made up a string of letters-numbers but nothing happened, tried only my favorite numbers - zip. then couple favorite words - zip. so started to close computer and noticed a lot of emails from Mozilla each with typical 6-digit confirmation code number - so i am not supposed to invent my own private code? all of the numbers emailed to me have long since expired. Please don't kill my accounts! I use a lot of Moz apps - but must use hateful Outfock b/c university no longer supports T'bird.