Hi Karaokiedoie, Thank you for your question. Unfortunately, unless you have a local copy of the previous profile or bookmarks, the ones that were in the account that was deleted will no longer be accessible. However if both sync accounts/emails used to sign up are on the same computer you can check to see if the profile is there: *[[Profiles - Where Firefox stores your bookmarks, passwords and other user data]] *[[Use the Profile Manager to create and remove Firefox profiles]] Otherwise, I am sorry, but sync is not meant to be a back up.