Firefox sync does not sync my bookmarks

Hi, this is my problem: I have ever used firefox as primary browser so I decided to keep my bookmarks synced trough Firefox sync. The last week my hard drive just died so everithing on it has been gone for ever, fortunately my bookmarks were synced on my android device on Firefix for android, yesterday I tried to log in into sync on another pc, I had to change my password because I lost my first one, my android were disconnected but on windows nothing has been synced neither bookmark neither other items, just nothing happend, I tried on another pc again and nothing has been synced again.

now I have an Firefox account useless and all my bookmarks are on the android version disconnected from the service, how can i do to resolve it? I'm worried about connecting my android device because if it will delete my old bookmarks I can't do anything to recovery it