If you are looking for the best Thunderbird to Outlook Converter, I suggest you most successful software that Known as is eSoftTools Thunderbird to PST Converter Tool. It can convert single as well as bulk Thunderbird to PST files, It has 2 ways to select Thunderbird files, 1. Autoload configured Thunderbird profile position 2. Manually select Thunderbird mailbox file for conversion. It can convert the Thunderbird MBOX folder into various forms like PST, EML, EMLX, MSG, YAHOO, OFFICE 365, GMAIL, and HTML files.
For more info- Thunderbird to PST Converter
For more info- Thunderbird to PST Converter