On signing in to my android and Windows PC firefox browsers with the same accounts, the sync will update browser settings, history, etc. just fine but when it comes to bookmarked webpages in the default bookmarks bar and individual folders and passwords, they will be completely out of "order" -- I'll have both previously deleted bookmarks from my Windows browser pop up on my android browser and vice versa and as for passwords, some of them won't even sync. Browsers have been re-installed to fix problems and I've even used the QR code to see if that helps. Nothing works. What's going on?