Windows 7 (Version 6.1.7601 Service Pack 1 Build 7601) lost my profile--after recreating a profile, I am trying to get the Firefox (29.01) Sync working between the rebuilt system (desktop) and the existing system (laptop) . I have what should be a good Sync account (it seems in every way to be live on the laptop), yet the rebuilt desktop insists that the Sync account does not exist and one must be created. That is to say, when I choose "Already have an account" and use the credentials I have, which apparently work on my other (laptop) system, I get the message that the account does not exist and that I need to create a new account. I reset the password on the existing laptop account just in case my notes were wrong. The account still works on my laptop but does not on the rebuild. At this point, I have then (on the rebuild) tried to create the account again (I know, but what choice do I have?). This does create an account, which I did not expect, but it is, apparently, a new account though with the same account name as is working on the laptop. At this point, there is no option to pair a device on the newly recreated system (and sync account). (The existing, laptop system does prompt for a pairing code, but since I can't get any such from the recreated system, it's a dead end.) At this point, should I delete (both) my sync account and start over?