The SysInfo Thunderbird Email Backup Tool is the best choice for you if you want a tool that can help you back up the Thunderbird mailbox items into the hard drive. Thunderbird profile into PST, MSG, EML, EMLX, PDF, CSV, DOC, DOCX, PNG, HTML, etc. The Software provides its users with a complete backup of Thunderbird mailbox data, it provides an option to Preview the mailbox items and attachments before backup to have fault-free conversion.
Access the tool: https://www.sysinfotools.com/thunderbird-backup.php