How to Move Emails from Outlook to Thunderbird?

Hi,
Yes, you can move emails from Outlook to Thunderbird by using the Manual Technique. In this, firstly you have to configure Outlook to Gmail and then set up Gmail in Thunderbird.

In this case, I will suggest that you must go for an Automated solution which can be performed using a third-party utility. The professional approaches are much more reliable and efficient to move emails from Outlook to Thunderbird.

Hi,
A few days ago, I was also searching for a professional utility to move emails from Outlook to Thunderbird. Then one of my friends suggested me to go for the SysTools Outlook PST Converter. Using this application, you can easily and efficiently export Outlook mail to EML format without any data loss. It also provides users with the option to convert corrupted and password protected PST files to the number of different file formats including MSG, PDF, etc.

PS: You can also try the free demo version of the utility. It worked fine in my case.