ericcallner, first you could try the steps in the section "Restoring from backups" here: https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them If that doesn't work, then next you could try the steps in the following article: https://support.mozilla.org/en-US/kb/recover-user-data-missing-after-firefox-update Hopefully one of these articles will help you find the missing bookmarks.