I understand that the following is necessary as described in the FAQ. '' I lost my two-step authentication device, can’t find my backup authentication codes and don’t have a logged-in device. Can I request to delete my Firefox Account?'' Is it possible to remove the backup account related to such a locked-out account to allow that account to be associated with the new account created? Note that the Authy locked account has been abandoned on Firefox for a long time. Not certain if there is a limit time-frame of no account access after which the account may be declared abandoned and may therefore have the backup account unlocked for a new account association to the backup account.