Migrate Thunderbird to Mac Mail- Easy View Data In Mac OS

Rollins Duke
Published: October 31st, 2025 • 8 Min Read

Overview: If you are looking for ways to import Thunderbird to Mac Mail. Then, this write-up will help you understand all the methods and strategies that will help you achieve your goals. Additionally, this will also cover reasons users want to migrate Thunderbird to Apple Mail.

Thunderbird: Thunderbird or Mozilla Thunderbird is an open-source email client popular among Linux and Windows users. It was developed by Mozilla in 2003. The email client saves all the email data in a single mbox format. Additionally, it also supports famous protocols like POP3, IMAP, and SMTP.

Apple Mail or Mac Mail: Apple Mail, or commonly known as Mac Mail, is the email client developed by Apple Inc. for their macOS, iPadOS, and iOS software. It was developed to seamlessly integrate with Apple’s work environment.

In this guide, we will understand why users want to convert their Thunderbird emails to macOS. The guide will also cover a professional approach through which users can migrate Thunderbird to Apple Mail.

Reasons to Import Thunderbird to Apple Mail

There are some reasons why users want to switch and migrate Thunderbird to Mac Mail. Thus, some of the amazing features, benefits, or reasons behind that are mentioned below:

The toolbar in Mac Mail is fairly straightforward and makes the process of personalizing the email very straightforward which lead user to save all emails from Thunderbird to Mac Mail.
By using the glance option, the full-screen slide show of Apple Mail displays large and eye-catching photos for the viewer to peruse.
Using the Flag Feature, you may indicate which emails are important by marking them with a checkmark, which is not available in Thunderbird, and thus, make the user think to migrate Thunderbird to Mac Mail.
Data detectors in Mac Mail assist in determining the specific email account that has to be established.
The parental control function prevents the email from being inappropriately handled which also make the user to import Thunderbird to Apple Mail.

Manual Methods to Migrate Thunderbird to Mac Mail

We all know that both Thunderbird and Apple Mail applications support the MBOX file format. However, to conventionally import Thunderbird to Apple Mail, the user has to follow two conversion phases. The steps for the same are mentioned below:

Phase 1: Export MBOX File From Thunderbird

Open Thunderbird on your account.
Click on Tools and choose Add-ons and Themes.
Search ImportExportTools NG and click on Add to Thunderbird.
Further, right-click on any email and choose ImportExportTools.
Next, select Export Folder and browse the saving location.
At last, click on the Select Folder button to export Thunderbird to MBOX file.

Phase 2: Import the Output into Mac Mail

Once the conversion is completed, run the Mac Mail email client.
Now, choose File and select the Import Mailboxes… option.
In the “Import Data From” window, choose the “Files in MBOX Format” and hit Continue.
Choose files in the MBOX format option and press Continue.
At last, browse the resultant MBOX files from the computer, choose them, and complete the process.

If you face any problems while using the manual methods, then follow the hassle-free and best method to migrate Thunderbird to Mac Mail.

Alert: The manual might look free of cost, but it demands a lot of time and resources to efficiently migrate Thunderbird to Mac Mail. Plus, it is very complex and has no data security at all. In addition to this, the conventional way is not independent and does not support bulk actions at all.

Limitations to Migrate Thunderbird to Mac Mail

Time-consuming: The approach is very time-consuming, especially when the users have larger files to transfer, which will lead to more time and effort consumption.
Complexity: The method is divided into 2 phases, which makes it complex and difficult to understand, as users have to understand two different strategies; this can lead to confusion while following it.
Technical knowledge: The method requires technical knowledge to convert data. Knowledge related to adding plugins in Thunderbird to import them into Apple Mail
No Bulk transfer: There is no way to migrate a large Thunderbird to Mac Mail. Exporting larger files can cause freezing and crashing issues within Thunderbird.

Best Method to Migrate Thunderbird to Mac Mail

A highly recommended and professional solution is BitRecover Thunderbird Converter. The software has a very simple and user-friendly interface for all technical and non-technical users. This Thunderbird to Apple Mail converter provides multiple advanced features and capabilities.

Users can convert and import unlimited data from the Thunderbird application, and also users can migrate complete data from the Thunderbird email client. Some of the amazing and advanced features, as well as the working guide, are mentioned below:

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Steps to Migrate Emails from Thunderbird to Mac Mail

Firstly, download Thunderbird to Apple Mail Migration tool on your computer and install the setup.
Now, upload profile data automatically or manually in the software interface.
Next, choose all or specific folders and click on the Next button.
After that, select MBOX from the list of saving options to migrate Thunderbird to Mac Mail.
Browse a destination path to save the resultant files and hit the Next button.
This will start the Thunderbird to Mac Mail migration procedure.
Further, you will get a “Completed Successfully” message when the process to migrate emails from Thunderbird to Mac Mail.
Lastly, your resultant data will be saved on the destination path in the selected (MBOX) format to migrate Thunderbird to Mac Mail.

Further Import Process: Once you get the MBOX file simply import that in Mac Mail following the steps mentioned in the Phase 2 of manual method to import Thunderbird to Apple mail account.

Benefits of Thunderbird to Mac Mail Migration Tool

The tool gives the facility to load Mozilla Thunderbird folders in the software interface automatically as well as manually.
This application allows transferring selected Thunderbird folders to Mac Mail quickly.
Also, it gives freedom to store resultant mailbox files at the selected destination path.
The tool is compatible with all 32-bit & 64-bit and the latest Windows Operating systems including Windows 11, 10, 8, 7, and all versions.
This Thunderbird to Mac Mail migration tool is not just limited to one file format, as it supports 25+ saving options, such as convert Thunderbird to PDF, MBOX, CSV, etc., or migrate Thunderbird to Gmail, Yahoo, Maildir, Outlook, Office 365, etc.
Thunderbird to Apple Mail conversion tool keeps every attribute intact, including email attachments, folders, signature, subject, to, cc, bcc, from, date, time, etc. information.
The tool can migrate and convert complete data of the Thunderbird profile, including Emails, Contacts, Calendars, Notes, journals, and other data.

Professional Assistance: If you have any concerns while operating the tool mentioned above, you can opt for our migration services, where we will migrate your data on your behalf with complete accuracy and reliability. A certification will also be provided as evidence for successful migration. Additionally, coordinate our team for any additional customised features that you require in the tool.

Frequently Asked Questions

1. How to import contacts from Thunderbird to Mail Mac?

Ans. Just follow these simple steps to import contacts from Thunderbird to Mac Mail.

Firstly, export Thunderbird contacts to vCard format and paste the resultant vCard file to Mac Computer.
Run the Apple Mail email client, choose the File >> Import option, choose the vCard file, and complete the process.

2. How to convert Thunderbird emails to Mac Mail?

Ans. Here are the steps for Thunderbird to Mac Mail migration.

Download and install the Thunderbird to Apple Mail Conversion tool.
After that, export Thunderbird emails to MBOX format using the software.
Import MBOX files to Mac Mail effortlessly.

3. Can I install the mentioned software on Mac OS X Computer?

Ans. Yes, the Thunderbird to Apple Mail conversion tool can work on both Windows OS and macOS-based computers.

Final Words

If you have limited data to migrate Thunderbird to Mac Mail, then you can go for manual methods, or if you have large data, then the Thunderbird to Apple Mail Conversion Tool is available in the online market with a free trial version. And it allows exporting a maximum of 25 emails from Windows Thunderbird to Mac Mail-supported format. First, get complete satisfaction of import Thunderbird to Apple Mail from the trial edition of the software, and after that, proudly purchase its license keys with a 30-day money-back guarantee. We have recommended it to several users, and they got 100% accurate results with complete satisfaction.

Additional Support: For anyone who feels they have any remaining queries can feel free to contact us through our live chat support or email us at [email protected]. Our support team will contact and resolve issues using online meetings if required. Solving your queries is our top priority.