How to backup Thunderbird settings and messages? Using this Thunderbird Backup Utility. Thunderbird Backup is a powerful backup tool which will backup all your emails and settings from Thunderbird. This wonderful tool can backup all Profiles from current user. Thunderbird Backup also backup your favorite list and My Documents folder. You can compress and encrypt your backup archive. FTP Uploader and CD burner has also built-in, you can upload your archive to your FTP server or burn your archive to CD/DVD writable device.