Back up your data
Use Firefox Sync to backup and transfer your data.
Export Firefox bookmarks to an HTML file to back up or transfer bookmarks
This article explains how to export your bookmarks to an HTML file, which can be used as a backup or for importing into another web browser.
How do I set up Sync on my computer?
Use a Mozilla account to sync your bookmarks, history, passwords, add-ons and open tabs with another device, profile or version of Firefox.
Restore bookmarks from backup or move them to another computer
Learn how to restore your bookmarks from the automatic backups that Firefox creates, save and restore your own backups, and move bookmarks to another computer.
Back up and restore information in Firefox profiles
Firefox stores your personal information and settings in a profile folder. Learn how to back up and restore this important data.
Profiles - Where Firefox stores your bookmarks, passwords and other user data
Firefox stores your personal information and settings in a profile folder. Find out what is in your profile and how to locate it.
How do I choose what information to sync on Firefox?
Learn how to select what information (bookmarks, add-ons, browsing history and other data) to share across your devices with Firefox Sync.
Recovering important data from an old profile
If you need to create a new Firefox profile, find out how to recover your old Firefox data such as bookmarks, history and passwords.
Export login data from Firefox
The Firefox password management feature allows you to export saved username and password data to a file. Learn more.
