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How to Convert Thunderbird MSF to PST for MS Outlook?

Email clients like- Thunderbird and Outlook allow their users to store their mailbox information locally. For this data saving process in the user’s local drive, both email clients use different file types. Thunderbird uses MSF files and on the other hand, Outlook uses a PST file. So, to move emails and other information from Thunderbird to Outlook users need to Convert Thunderbird MSF to PST files. Through this write-up, we will explain the complete process of How a user can Convert Thunderbird MSF to PST for MS Outlook?. Start reading and get the answer.

The brand Mozilla the creator of Firefox browsers has also made an emailing software known as Thunderbird Mail client. It is an open-source application and is available on the internet for individuals for free of cost. A large number of users on this planet use this email client for doing general emailing tasks. It is very easy to configure an email account in it using it for emailing.

But in its competition, there are various more email clients. And MS Outlook is at the top of the list of email clients. Thunderbird is easy and free but it is not able to give you the features as MS Outlook. For this reason, most of the users are now want to migrate from Thunderbird to Outlook.

Download SysInspire MBOX to PST Converter Software, now to easily convert MBOx file of all extensions like- .mbox, MBX, MSF, and more to readable PST files with simple steps.

Below we have mentioned some of the real user’s queries to get a quick about this same situation.

User’s Queries

In the year 2020, I have used the Mozilla Thunderbird application for emailing process. I have configured my Business email account in it and it has worked perfectly for me. But after some time it has started showing some errors and for various other reasons I have stopped working with thunderbird, I have switched to Outlook. But some of my important emails are in my Thunderbird MSF files. Now I want to Import data from this MSF file in Outlook. So I need a solution for Converting MSF to Outlook PST files. Can anyone help me?

How to Convert Thunderbird MSF to PST for MS Outlook?

Users require to Migrate from Thunderbird to Outlook but the migration from Thunderbird to Outlook in a direct manner is not possible. The reason behind this is Outlook only supports PST file format and doesn’t offer an option to import thunderbird MSF or MBOX files.

So the solution which is available for users is to Convert Thunderbird MSF files to Outlook supported PST file format. Now you can do it with an easy process using the automated solution SysInspire MBOX Converter Software. It supports all MBOX extensions for conversion including- .mbox, MSF, MBS, MBX, and more.

Users can select MBOX, MSF files manually and also directly load the default location of Thunderbird storage folder by the software for the conversion process. In addition, users can also create a single PST for saving all MSF folders as well as can save each MSF folder to separate PST files with this tool.

Steps to Convert Thunderbird MSF to Outlook PST files:-

  • On your windows based computer download and install the SysInspire MBOX Converter Software.
  • Launch the software and from the welcome screen of the software hit on Add File/Folder button.MBOX Converter
  • After this choose an option to select and MBOX/MSF files and folders from the options:-
    • Select MBOX File:- With this option user can add a single MBOX/MSF file by manually selecting it from its location.
    • Select MBOX Folder:- Manually select MBOX folder location to add MSF/MBOX files in bulk using this option.
    • Auto Load Thunderbird Profile:- Select this option and auto-load the Thunderbird profile mail folders and items.
  • After adding MBOX/MSF files to the software and hit on Next to extract and load all inner items from MBOX files.Convert MBOX File
  • Now hit on the extracted items from MBOX and get a preview of all emails and select the required MSF folders and hit on Convert MBOX button.MBOX viewer
  • From the new conversion option window select Single PST or Separate PST option for MSF to Outlook PST Conversion. (User can also convert MSF files to EML, EMLX, MSG, HTML, NSF like file formats using this single software).Convert MBOX file
  • Apply other required options like- mail filter and choosing a saving location.
  • In the last step, hit the Convert button to start the MSF to PST file conversion process.MBOX Conversion to PST

Great Features of SysInspire MBOX to PST Converter:-

  • Convert single MBOX file as well as perform MBOX/MSF conversion in bulk.
  • The software also offers auto-load Thunderbird profile features to automatically add MSF files in the software for conversion.
  • Extracts all MSF folder items and shows a live preview of each MSF email
  • Make a selection of required multiple MSF/MBOX folders and convert them to PST.
  • Provides the option for saving multiple MSF folders to single PST files or creating separate PST files for saving each MSF folder.
  • In addition to PST files, the user will also get various more file options for saving MSF folder items like- EML, EMLX, MSG, HTML, NSF, etc.
  • Also allow to Import Thunderbird MSF to Office 365, Gmail, and YahooMail cloud.
  • Mail Filtering by date range and Naming convention features are also available in software for users ease.
  • Users get the facility to save the results or output files to the desired location on their local drive.
  • Comes with a demo version facility that will allow you to convert MSF file to PST with up to 25 email items free of cost.


Thunderbird uses MBOX and MSF files for saving users mailbox folders. But These file types are not workable in MS Outlook. Due to this reason, most users require to Convert MSF to PST files. All users can easily follow the above-given steps to accomplish the task of MSF to PST Conversion in a reliable manner. For a trial, users can try the demo edition of MBOX Converter which will allow users to know the working process of the software.

About SysInspire

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