Can also be used for backup and restore
Move Thunderbird profile to new computer
Are you having trouble converting and moving your Thunderbird profile, settings, and email to a new computer?
Many people choose to use Thunderbird as their email client because of its many advantages, including advanced spam filtering, a good reputation for reliability, the ability to customize, a high level of security, support for email protocols such as SMTP, POP3, and IMAP, and much more.
The instructions below can also be used to backup and restore your Thunderbird data. These steps describe how to manually copy your profile folder to a new PC.