Firefox worked and synced properly for about a week, several months ago. We took an update and all the bookmarks disappeared from our iphones and bookmarks no longer sync between the desktop(primary) and laptop(secondary). I have tried logging all 4 devices out and logging in starting with the desktop, numerous times. With each Firefox update I hope the problem has been solved but it never is. I don't try or want to sync anything but bookmarks. Thank you in advance for any help you can provide. I will be happy to post sync logs but I don't know where to find them or where to post them. Dave