When I attempt to sync it appears to work but no data is transferred at whatsoever. I managed to get hold of a new machine within two days of last using the old laptop, I am not optimistic about seeing the old one again. Is any data stored on the Mozilla cloud service because I have no other devices running firefox. I have used firefox sync successfully in the past to transfer data between old and new computer, but I usually have both of them at hand when I sync. I haven't changed any passwords so my encryption key should still be valid. Is there any hope, or should I start resetting the hundred or so passwords on my old account?