Are you looking for a trustworthy and efficient tool which support to perform Thunderbird merge mail folders to Outlook on all Windows machine such as 10, 8, 7, 8.1, vista, XP etc. The tool has unique option to split big size PST files into small ones. Thunderbird to Outlook Converter has ability to move all associated attachments in their original form to Outlook. While the software performing Thunderbird merge mail folders to Outlook, it maintains the email element in original form such as header, hyperlinks, email address, email content, text, font etc. To know the complete process of how to perform Thunderbird merge mail folders to Outlook, download trial version of Thunderbird to Outlook Converter.