Back up and restore information in Firefox profiles
Firefox stores your personal data and settings in a profile folder. Learn how to back up and restore this important information.
Recover important data from an old profile
If you need to create a new Firefox profile, learn how to recover your old Firefox data such as bookmarks, history and passwords.
Recover user data missing after Firefox update
If your bookmarks, passwords, preference settings and other data are missing, it may be available in another Firefox profile. Learn more.