MozillaThunderbird Backup Tool  is a software application or utility designed to facilitate the process of backing up data from Mozilla Thunderbird, a popular open-source email client. Thunderbird Backup Tool enables users to create copies of their Thunderbird profiles, emails, contacts, and settings. Moreover, with the help of this tool, you can save and migrate Thunderbird to files or folders and several email clients. You can split your large resultant PST file into small parts through the split resultant PST feature. Additionally, it supports ll version of the Windows operating system. To explore the performance you can download it.