Do you have MSG files on your computer and want to open them in the Mozilla Thunderbird email client? We have numerous queries on this topic. If you have one, then you don’t need to worry. In this blog, we have discussed methods for importing MSG files into Thunderbird in 2025.
Thunderbird is a free, open-source email client that runs on operating systems like Windows, Linux, or Mac. It can manage multiple email accounts and store email and data on a local computer. Users can download various add-ons and extend the features of Mozilla Thunderbird.
MSG is an Outlook file that stores individual emails, contacts, calendars, tasks, notes, events, etc. MSG files open in Microsoft Outlook and store email, including meta properties like To, cc, bcc, subject, Date, body, etc, with attachments.
Why import MSG to Thunderbird?
Thunderbird is a free, open-source email client, so many users want to use Thunderbird to manage emails. A few other reasons are explained below.
Graphical Interface: Thunderbird provides a good graphical interface that provides a good overall experience in managing emails.
Provide Add-ons: The User can extend the features of Mozilla Thunderbird by downloading various add-ons.
Supports IMAP, POP & SMTP protocols: Thunderbird supports IMAP & POP protocols, so you can add various IMAP-based email accounts to it.
Supports Multiple accounts: Thunderbird supports many email accounts at a single time; therefore, the user can add multiple accounts to it.
A professional method to import MSG to Thunderbird
A professional and safe method to import MSG to Thunderbird is to use eSoftTools MSG Converter software. This tool can convert MSG files to MBOX files that can be opened in Mozilla Thunderbird.
The tool allows users to convert MSG files to different email file formats like PST, EML, EMLX, HTML, MHTML, MBOX, & NSF. The software can convert corrupted & damaged MSG files without any data loss.
How to import MSG to Thunderbird automatically?
- Download and install the eSoftTools MSG converter software on your Windows PC.
- Click on the Select MSG Folder button and select the MSG folder from your local drive.
- Click the Next button and start the scanning process.
- Preview the emails in the preview panel and select the required MSG folders.
- Click on the Convert MSG button and choose the export option as Export in MBOX.
- Browse the saving location and apply the Naming convention and email filter feature(optional) if required.
- At last, click the Convert button, and the conversion from MSG to MBOX file format will start.
Benefits and features of MSG Converter Software
- Imports MSG file to different cloud applications like Gmail, Yahoo Mail, Outlook.com, and Office 365.
- The software previews all emails, MSG files & folders in the preview panel inside the software.
- Can save and name emails with different names based on Subject/Date/From.
- Have an email filter feature that filters emails according to Date.
- Compatible with MSG files of all Outlook versions like Outlook 2021, 2019, 2016, 2013, 2010, 2007, 2003 & below versions.
- Comfortably runs on all editions of the Windows Operating system, like Windows 11, 10, 8.1, 8, 7 & below versions.
FAQs
Q. Why can’t I open MSG files directly in Mozilla Thunderbird?
Ans. MSG files are only supported by Microsoft Outlook and can only be opened in it. However, Mozilla Thunderbird only supports EML or MBOX email files and successfully imports them.
Q. Is an Outlook installation required by third-party applications for conversion?
Ans. No, Outlook installation is not required by the eSoftTools MSG Converter Software for conversion, but to open MSG files, Microsoft Outlook is needed.
Q. Can an email filter be applied in the conversion process?
Ans. Yes, eSoftTools MSG Converter software supports the email filter according to the Date Range. The user has to give the Date Range ( From and To) to filter emails according to Date.
Q. Is data loss risk involved while using the MSG converter software?
Ans. No, data risk is involved while using the eSoftTools MSG Converter software, as it maintains email meta properties like To, cc, bcc, subject, date, sender, and recipient information while conversion.
Q. Is a demo version available before purchasing the software?
Ans. Yes, the company provides a free demo version in which 25 emails from each MSG folder can be converted to a MBOX file.
Conclusion
Migrating MSG files to Mozilla Thunderbird becomes easy by using a professional tool like eSoftTools MSG converter software. The manual method is available, but they are not suitable for bulk conversion. Users have to use a third-party application to convert MSG files to MBOX format in bulk. To check the functionalities of the software user can download the free demo version of the software.
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