If you are try to transfer EML to Thunderbird, but you have tried so at this time highly recommended Aryson EML Converter tool. This software transfers EML to Thunderbird and its also convert multiple file format like MBOX, PST, MSG, PDF, EMLX, Gmail, Yahoo, IMAP, Zoho Mail, and so on. It includes a feature to convert single as well as multiple EML files into other file formats and email clients. This software offers multiple selections for managing the EML files like Select Files, Select Folder, Remove and Remove All.