If you are searching to transfer your Thunderbird to a new computer then you will go with this informative article Move Thunderbird to New Computer. This article will provide the most trusted manual solution to migrate the process. However, the manual method is a too lengthy process. So, additionally, they will also provide a professional solution Thunderbird Backup Tool.  The software is a fully-fledged utility that saves your Thunderbird mailbox to different file formats such as PST, PDF, CSV, EML, EMLX, MSG, etc. Furthermore, it also offers to convert MBOX files to several email clients like Gmail, Yahoo Mail, Hotmail, IMAP, Office 365, Zoho Mail, etc. Additionally, they are flawlessly compatible with all versions of the Windows operating system. You can try the trial versions of the software to analyze the performance.