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Richard ~ Published: 24-Feb-2022 ~ How to ~ 4 Minutes Reading

How to Import Outlook OLM files to Mozilla Thunderbird Account?

Looking for a reliable approach to import OLM to Thunderbird? If yes, then this blog matches your concern and provides you with a free and the most effective solution.

Multiple Email Clients are offering more advanced features. With the increase in the features, users tend to move from one Email Client to other according to their requirements.

OLM files store emails, contacts, calendars, journals, to-do-list, and other data items properly and are one of the well-known file formats that have been supported by Mac Outlook. These cannot be open in Outlook for Windows. Another side, Thunderbird is an email client application that works as a personal information management system and has multiple extended features.

Most of the users are finding a way to export Outlook for Mac OLM files to Mozilla Thunderbird including Attachments. And, there are multiple reasons for the same.

There is no manual solution for solving this query. That’s why we have finally come up with one of the effective solutions that can make the task easiest and will save most of the time and effort.

Why do Users Import OLM Emails to Thunderbird?

  • Thunderbird has more extra security features as compared to Outlook.
  • Provides a Quick search bar so that users can easily search for the data that they want.
  • Manage a folder with unread data that will make the data more attentive.
  • Allows IMAP support and has manageable smart folders and Address books.
  • Provides Automatic Updates time-to-time.

User Queries:

“I have been using Outlook for Mac for last 3 years but now due to some change in my company I want to switch to Thunderbird Account. I had exported my account data in the form of OLM files and Now finding a solution to transfer them.
Can you suggest to be a better way to import multiple OLM files to Mozilla Thunderbird Account? “

Effective Solution to Import OLM Files to Thunderbird

It is better to use a professional utility for this task, i.e., the OLM Converter Tool that allows users to import multiple files directly to Mozilla Thunderbird along with attachments. It is developed with multiple-enhanced features and provides options to do multiple tasks.

This OLM to Thunderbird Migrator utility is been used by experts. Also, it provides a unique filter option to locate a particular email from the bulk of data presented on the screen. And, other advanced options help to include email headers, restore old folders, delete empty folders, and skipped out grey folders, and provide users multiple naming options to save the resultant file.

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Procedure to Import Outlook for Mac Files to Thunderbird:

  • Start the Utility and Go to the Open Menu. Choose Outlook for Mac OLM files from Email Data Files.

run olm to thunderbird migrator

  • Upload folders from the system. Evaluate the data from them and select the data according to needs.

Select OLM files

  • Open the Export menu and choose Thunderbird as the Email Client.

choose thunderbird to import olm files

  • After that, the process will start automatically, and once done, it will display a final message on the screen.

get the result
After that, you can click on the Open Folder to get the resultant data. Also, you can easily export only 10 items per folder while using the Free Trial version. To migrate multiple data, continue with the Licensed Version.

Characteristics of OLM to Thunderbird Migrator Software:

  1. Bulk Transfer: It allows users to do a migration of multiple files from OLM to Thunderbird Account. The Software is an ideal solution that can do the conversion in numbers without losing a single bit of data.
  2. Selective Data: This Migrator provides users an option to select the data or emails from the details preview so that it is easy for them to work according to their requirements.
  3. User-Friendly Interface: The Software has a user-friendly interface that has the ability to help the users in performing the functions. It can be easy to access by all the technical as well as non-technical users.
  4. Different Options: Users not only import OLM files to Thunderbird but can also export the data into different file formats such as Adobe PDF, PST, EML, MBOX, HTML files, and in other Email Services such as Google Mail, Office 365, and other IMAP Services.
  5. Removal of Meta Data: It is also possible to extract multiple email elements such as OLM attachments, OLM email ids, OLM phone numbers separately. Email Ids and contact numbers will be taken out in the form of Text file format.


Fortunately, the process given above to import OLM files to Thunderbird is very easy and can be used by almost all users. There are lots of solutions available on the Internet but we suggest you continue with this and carry out the migration as soon as possible. This utility is effortless to use and specially developed with a special algorithm.