Most of the users are looking for a reliable cloud service provider like Office 365 to backup Thunderbird emails to it. The different address books which are created by Mozilla Thunderbird are Collected and Personal storage lists.
Thunderbird stores its contacts in a separate database which is created in the existing account folder. Mozilla Thunderbird is a free and open source cross-platform email application which is used to send and receive the emails. Thanks in advance! Thunderbird v/s Office 365 So, please suggest some methods to migrate Thunderbird contacts to Office 365 without any difficulties. So that, the data can be accessed from anywhere which will ultimately ease my work. As Office 365 being a reliable and user-friendly cloud service provider, I prefer using it. I need to transfer / migrate Thunderbird Address book to Office 365, Initially, I was using Thunderbird 52.5.0 email client and have also taken the backup the contacts which were in several MAB files.
