I am using Windows 10 and have spent considerable time trying to recover my lost bookmarks after restoring computer to earlier time. I have followed 'help' guidelines but nothing works. Firefox claims that bookmarks are saved to a backup profile but there is nothing in the folder. These are very important research bookmarks collected over years! I did a Firefox Refresh which messed up my toolbar and I lost an icon so I tried to restore computer to an earlier date which I have done successfully before without problem and without losing my bookmarks. Please provide easy to understand step by step instructions on how to recover this vital information.