http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
   https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file 

   https://addons.mozilla.org/firefox/addon/places-maintenance/ 

I posted before how many bookmarks are deleted, duplicated, etc. ut what I am seeing now is that many are moved to Unsorted Bookmarks, Some are still being deleted, duplicated and ones deleted months ago return (happening less now). How do I prevent Firefox from moving bookmarks to that folder without my "permission and how do I delete automated backups as of the bookmarks (which I believe may be part of the problem). Note this happens after every PC cold start, has also happened while I was looking at it and all of the usual suggestion DO NOT WORK: deleting the "places" file, running that add on that supposed to fix it, etc.: ou can check for problems with the places.sqlite database file in the Firefox Profile Folder. http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file You can try to check and repair the places database with this extension: https://addons.mozilla.org/firefox/addon/places-maintenance/ These did no work so please do not suggest them.