We know that migration task is very complicated if didn't have reliable solution. So if you want to convert and open emails in Outlook from Thunderbird then try MailsDaddy Thunderbird to Outlook Converter tool. The application manages internal and external folder structure druing the whole conversion process. It has several features to transfer and
import emails into PST format at once. User can also use the free demo edition of the solution first and migrate up to 20 emails from each folder.
Steps to Export Thunderbird to PST
Download and install application in Window.
Launch the solution and browse or auto load Thunderbird email.
Click on Export button.
Select all folders and PST export option
Choose single or separate conversion method
Save the destination then hit on Export button
Now wait for the confirmaiton window and then import convered PST file into Outlook. Read more:
Thunderbird to PST Converter