When my pc and tablet were together I synched the bookmarks and everything was fine but I had to send my pc to repair and upon receiving it back I used the same sync account and although my phone and pc sync history the bookmarks and preferences on my tablet will not show up on my phone or pc. I have reset firefox and uninstalled and reinstalled, and I have changed recovery key, but the only thing that seems to show up as sincing with my pc is my pphone with no bookmarks passwords or preferences.