How to Back Up and Restore Mozilla Firefox and Thunderbird

MakeUseOf

By Jack Slater

Updated Sep 15, 2023

Firefox and Thunderbird both store essential data on your machine. To stop it from getting lost, here's how to back up and restore the programs.

Mozilla software packages, like Firefox and Thunderbird, save user profile data such as passwords, bookmarks, and email messages.
Manually backing up and restoring Firefox profiles involves copying and pasting profile data to a different location, while using third-party software like Simple Firefox Backup provides a quicker and simpler solution.
Mozbackup is a free program that can backup and restore profiles for various Mozilla products, including Firefox and Thunderbird, making it useful for migrating to a new PC or for backup purposes.

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