Problems with bookmarks and history not working properly can be caused by a corrupted places.sqlite database. You can check for problems with the <b>places.sqlite</b> database (bookmarks, history) in the Firefox profile folder. *https://addons.mozilla.org/firefox/addon/places-maintenance/ See also: *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