How to Import MSG into Thunderbird? Open .msg Files Easily

Written By Loic Traves
Approved By Mithilesh Tata
Updated on July 10th, 2025
Reading Time: 3 minutes

Summary:- In today’s communication era, the MS Outlook and Mozilla Thunderbird applications play a crucial role and provide reliable email management. Both platforms are equipped with several features that streamline communication. However, direct access to the MSG file in Thunderbird is nearly impossible to achieve. For better compatibility, users want a reliable and secure connection. To solve this issue, we provide various tested methods, including a manual method and a professional MSG Converter Tool. The tool can easily import MSG files into Thunderbird.

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Reasons to Import MSG to Thunderbird

Here are some common reasons why users choose to import MSG files into Thunderbird:

Thunderbird is a cost-effective alternative to Outlook.
It has a more intuitive and interactive interface than MS Outlook.
It supports multiple accounts, making it perfect for managing high volumes of emails efficiently.
Thunderbird works on various OSs, while MSG files are Outlook-centric.
It helps to centralize and preserve old emails for archival purposes.

Free Method to Import MSG Files into Thunderbird

Due to different architecture and compatibility, there is no direct solution to import MSG files into the Thunderbird application. However, there are multiple methods available to help you import your MSG files.

First, download and install the Microsoft Outlook application on your system.
Then, sign in using your administrator account credentials.
Once logged in, access and preview all mailboxes linked to your account.
Click on the File tab and navigate to the Info section.
Choose the Save As option and select the desired location to store the file on your system.
By doing this, the file is saved in EML format.
Start by downloading and installing the Mozilla Thunderbird application on your system.
Then, navigate to the location where your EML file is saved.
Select the EML file and simply drag and drop it into the desired folder or label within Thunderbird.
In the end, make sure none of the data is lost during the import process.

Why Do Users Not Prefer The Manual Method?

Here are several reasons why users usually prefer not to manually migrate MSG files into Thunderbird:

Thunderbird does not natively support MSG files; direct conversion is impossible.
It required complex steps to accomplish the task.
The manual method is time-consuming and inefficient.
This is an error-prone method and leads to data loss.
Manual methods lack bulk import functionality.
Manually imported MSG files may not retain original formatting.

Best Tool to Import MSG Files into Thunderbird

To overcome the limitations of manual methods, users generally opt for a reliable professional MSG Converter Tool. The tool is equipped with the latest technology and an innovative algorithm for fast, safe, and accurate results. Moreover, the tool is user-friendly and easy to operate to help seamlessly import the MSG file into Thunderbird. Also, you can convert MSG to MBOX, which is a Thunderbird-compatible file format. Nonetheless, the tool ensures that your formatting, metadata, structure, and hierarchy are not affected throughout the import process.

Steps to Export MSG File to Thunderbird

Begin by downloading and installing the MSG Converter Tool on your computer.
Then, select either the Select File or Select Folder option based on your requirement.
Browse your local system and upload the MSG files you want to convert.
Once the files are loaded, preview the email content and choose the specific items you wish to convert.
From the available export options, select Thunderbird as the output format.
The tool will then convert the selected MSG files into .mbx format, compatible with Thunderbird.

Conclusion

After reading the blog, you’ve explored different methods to import MSG files into Thunderbird and can now choose the most suitable one. The professional MSG Converter stands out for its smooth operation, interactive features, and dedicated support. It streamlines the migration process, making it accessible for both technical and non-technical users. With its user-friendly interface and reliable performance, the tool makes importing MSG files into Thunderbird easy, efficient, and hassle-free, like having a guided, effortless solution at your fingertips.

Frequently Asked Questions

Q. How can I open .msg (Outlook) files in Thunderbird?

Ans: To import/open an MSG file into Thunderbird, you can use any of the above-mentioned methods as per your requirements. However, for faster and smoother operation, always choose the professional MSG Converter tool.

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About The Author:

Loic Traves

Loic Traves is a seasoned technical expert who has helped thousands of clients with Microsoft Outlook and various cloud-based email platforms. He enjoys writing about email client backups and migration processes. Passionate about supporting users in need, he strives to provide the latest insights, clear explanations, and practical, user-friendly solutions.