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How to Export Thunderbird Contacts to Outlook 2019? Top 2 Ways

thunderbird contacts to outlook
Admin | Modified: 2021-09-20T13:19:06+00:00|conversion | 4 Minutes Reading

Mozilla Thunderbird is an open-source and reliable desktop-based email client. In addition, most Thunderbird users are familiar with MBOX files that store all emails by default. In addition, some users are not aware of the .mab file format, which is offered by the Mozilla address book file used in Thunderbird. In addition, to import Thunderbird contacts to Outlook application, Thunderbird users need to first export their contacts as a CSV file and then import the contacts into MS Outlook.

Although, while moving towards the end of the article we have introduced the best, efficient, and error-free method to transfer Thunderbird Address Book to Outlook PST file format.

Note: The CSV (Comma Separated Value) format is just a plain text file of the database table, which is supported by various applications including Microsoft Outlook.

Reasons for Thunderbird Contacts to Outlook 2019 Exportation

The upcoming segment of the blog holds the detailed reasons because of which users export Thunderbird Address Book to Outlook PST 2019, 2016, 2013, and other below versions.

Data is stored on the local machine: As a Thunderbird user, all data is stored on the local system, not on the server.
No Provision of Personal Storage Management: We all know that MS Outlook offers the best provision to store all the data files on the cloud platform which is definitely not the case with the Mozilla Thunderbird. One can easily store all the emails, contacts, calendars, tasks, journals, and even notes in a very seamless manner.

Steps to Move Contacts from Thunderbird to Outlook Manually

Some possible and effective methods are discussed below to ensure that users understand how to export Thunderbird contacts to Outlook 2019, 2016 or other below versions:

Export Thunderbird Contacts to CSV

Now users can export the necessary address book from Thunderbird to PST Outlook.

  1. Open the Mozilla Thunderbird application and click on the address book option in the menu bar.
  2. Now, the address book appears on the screen. Then select the address book you want to export from the contact list.
  3. Next, click on tool options and select Export.
  4. Specify a location and choose to save the selected address book, for example, CSV/VCF/TXT/LDIF format.

Shortcomings of the Manual Thunderbird to Outlook Conversion

If the user intends to export Thunderbird contacts to MS Outlook at once, then, there are some restrictions, because of which this conversion cannot be done manually. In addition, it takes a long time to import Thunderbird contacts into Outlook. So users can search for alternatives i.e.; MAB to Outlook converter which migrates contacts completely and effortlessly.

Thunderbird Contacts to Outlook Converter – Optimum Choice

The manual strategy has one limitation, which is Thunderbird must be installed and configured on the system. When your machine does not have any Mozilla applications installed, the above process will fail. Therefore, a standalone method is required to convert Thunderbird address book to PST. One of the methods is the MAB to PST conversion utility, which can easily convert Thunderbird address book to Outlook PST file format. The process to convert Thunderbird contacts to PST file format is as follows:

outlook attachment extractor extract attachments from selective folders

  • Download and install the error-free and efficient software on your computer


  • Launch the tool and then go to File >> Browse >> Open MAB files

added file

  • Choose PST and scroll to the location where you saved the file and select it

PST select

  • Now click the export button of the MAB converter software window at the top of the screen

pst export

  • Navigate to the desired location where you want to save the generated PST file

pst view

The Final Verdict

We have answered the biggest query “How to Export Thunderbird Contacts to Outlook 2019” Here, in this article, we discussed all the best possible methods that can easily convert Thunderbird Address Book to Outlook PST file format.