Hi, You can try to '''Restore''' an appropriate set via '''Bookmarks''' ('''Alt''' + '''B''') > '''Show All Bookmarks''' > '''Import and Backup'''. As a precaution you may also want to '''Export Bookmarks to HTML...''' first which you can '''Import Bookmarks from HTML''' later if anything goes wrong. [https://support.mozilla.org/en-US/kb/how-do-i-use-bookmarks?s=bookmarks&r=0&e=sph&as=s Using bookmarks] [https://support.mozilla.org/en-US/kb/Backing-up-restoring-bookmarks Bookmarks Backup/Restore]

You can also 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