MacSonik Zoho backup tool for mac is one of the best utility to transfer Zoho Mail to Thunderbird. This tool is inbuilt with various inbuilt features that provide a secure migration with zero alteration. This software perfectly maintains folder hierarchy and data security throughout the migration process. Users can opt to migrate selective emails of the desired dates using the mail filter feature of this tool. Moreover, the Zoho backup tool also helps to remove duplicate emails from the migration process. Using this tool, users can convert Zoho email to PDF, PST, Gmail, Office 365, and other file formats and email clients. 

To easily transfer Zoho Mail to Thunderbird, I would recommend using the professional Zoho Migration Tool. This tool is developed with advanced features that enable a smooth and secure migration of Zoho emails to Thunderbird accounts without any data alteration. The mail filter feature of this software facilitates the selective migration of Zoho emails of a set date range. Its user-friendly interface makes it easy to use by both technical and non-technical users.