how to backup thunderbird email
About. Backup Thunderbird is a free Thunderbird backup utility for Windows. It enables you to quickly backup and restore all of your Mozilla Thunderbird E-Mail Messages, Newgroups, RSS Feeds, Address Books, E-Mail Accounts and all other options.Just a couple of mouse clicks-no need for any professional knowledge.ow to Backup. All Thunderbird e-mail client profiles and data will be stored to a backup file. Select a new backup filename using the Save As button, then click the Backup Now button to start. Please note that you need to close Thunderbird before performing backup.