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Backup Thunderbird Emails in Windows 10 – A Complete Guide for Beginners

Published By Mohit Jha
Tej Pratap Shukla
Approved By Tej Pratap Shukla
Published On January 3rd, 2022
Reading Time 6 Minutes Reading

Virus attack, accidental or intentional data deletion, unexpected power outage, inbuilt application errors are few reasons of what could delete the Mozilla Thunderbird emails. Still, many organizations are not concerned about Thunderbird email backup until they face the loss. However, it is very much important for a business to keep the email data safe. Therefore, this article will explain how to backup Thunderbird emails in Windows 10/ 8.1/ 8/ 7.

Backup Thunderbird Emails to MBOX / EML Manually

You have 2 options to backup Thunderbird mailboxes manually:

  1. to MBOX format – a mailbox containing multiple emails
  2. to EML format – all emails will create EML files respectively

To MBOX Format

You will need ImportExportTools NG add-on that you can download for free in Mozilla Thunderbird. Once installed, follow the given instructions:

  1. Right-click on a mailbox folder that you want to backup in Thunderbird
  2. Choose ImportExportTools NG and select the Export folder
  3. Select the destination location and click Select Folder
  4. The mailbox is saved as an MBOX file.

To EML Format

  1. Open Thunderbird mailbox and select all the emails that you want to backup
  2. Right-click on any of the selected message and choose Save as option.
  3. Choose Select Folder
  4. The emails are saved individually as EML files.

First of All, What Kind of Thunderbird Email Backup You Need?

A message backup copy is fruitful if you take it on a regular basis. For this, there is a need for a workaround that should be easy and convenient in use. So, every type of person can use it without any problem. Thus, the users can take the help of PCVITA MBOX to PST Converter Software to download Thunderbird email in Windows 10.

download for windows

It is a capable utility that can save a copy of T-Bird messages from all the configured Identities & Local folders quickly on Windows platform within a few clicks. In addition, it provides incredible flexibility by offering multiple formats for the backup file. Yes! It is true. One can export Thunderbird emails into PST, PDF, NSF, MSG, EML, and HTML format. And, all the formats are supported by the popular Windows-based email client.

  • PST: Compatible with all Outlook editions, like Outlook 2019/ 2016/ 2013/ 2010/ 2007
  • PDF: The most secure file format globally independent of platforms.
  • NSF: Used by IBM Lotus Notes and Domino
  • MSG: Supported by Microsoft Outlook
  • EML: Windows Live Mail, Mozilla Thunderbird, SeaMonkey, and multiple other clients
  • HTML: Text Editor, Any browser like Chrome, Firefox, Microsoft Edge, etc.

Plus, this software can also be used when a user is switching from Thunderbird to any other email client like Outlook. Simply, they can upload either an orphaned Thunderbird readable file i.e., MBOX or directly scan emails from T-Bird application. Afterward, backup Thunderbird emails on Windows 10 into Outlook readable format (PST). And, import this resultant file into MS Outlook to access messages of T-Bird.

Let’s see how this tool saves emails of Thunderbird effortlessly.

Step-By-Step Guide to Backup Thunderbird Emails on Windows 10 System

Download the tool and installed it successfully. After that, use the below instructions for taking backup of Thunderbird Emails in Windows 10.

Note: Folks can also download a demo version of the software. However, it has a limitation that it converts only 25 items per folder.

Step 1. Start the software & click on Add File.

download thunderbird emails

Step 2. Opt for Mozilla Thunderbird and Default profile configured from file system option.

thunderbird profile

Step 3. Either backup all the configured Identities or a selected one. To save emails of all configured profiles, check the box Convert All Identities. Else, choose the desired identity using Select Identities option. Then, hit the Process button.thunderbird account

Step 4. After scanning the files, all the emails get appeared on the software panel. You can check the data integrity of mail here by using different view options. The utility ensures to backup Thunderbird emails in Windows 10 without any modification in the message.

Step 5. Click on Export to open its wizard. Here, you can exclusively choose those folders whose data you want to backup in Windows system instead of all. For this, go with Export Selected Folders and check the mail folders.

Step 6. After that, select the file format such as PST, NSF, MSG etc and Browse a location to save the resultant backup file. Then, click on Export to finally initiate the process.

That’s all about how to take backup of Thunderbird emails in Windows 10. Hence, if you have a backup file, then there is no need to worry about when an email deletes from the Thunderbird forever.

Above all, if you export a large number of messages in PST or NSF, then to manage the files a Splitting option is available. So, one can easily handle the oversized backup file by this feature. Besides this, when the user backed up T-Bird messages in EML, MSG or HTML, Mail Naming Convention offered by the tool. This functionality manages the email name on the basis of subject, date and time. Thus, every message can be easily distinguished with each other after the procedure.

What’s More – The software automatically saves the complete backup report in HTML format on PC. This summary report provides information about Source File Name, Success Count, and Fail Count.

Some Important Queries:

How Can I backup Thunderbird data Manually?

You will need to copy the mailbox files of your Thunderbird profiles from its storage location. This will backup your emails in the MBOX file format only.

Is the solution feasible on Windows 8.1 Operating system?

Yes, you can easily save all your Thunderbird emails irrespective of the Windows versions (10, 8.1, 8, 7, etc.).

Can I backup and export Thunderbird emails to Outlook?

Yes, you can create the backup of Mozilla Thunderbird items in multiple file-formats including Outlook readable PST, MSG, and other formats like PDF, EML, NSF, HTML.

How do I view the backed up data with programs other than Mozilla Thunderbird?

It depends on the method you used to back up the data. If you manually backed up data in MBOX format, then free MBOX Viewer will help. If you backed up data in PST, the free PST Viewer is required., and so on.

Ending Note!

A recent study concludes there are lots of businesses that do not have an appropriate email backup solution. Also, it is evident from above that Thunderbird email backup is crucial to meet the data need in a critical situation. This is the reason we have discussed an efficient solution that can backup Thunderbird emails in Windows 10/ 8.1/ 8/ 7 in the desired file format. So, make email backup a habit and also make sure that the backup file is always up to date.


By Mohit Jha

Mohit is a Microsoft-certified expert who has assisted thousands of clients with Outlook & Microsoft Office 365 issues. He enjoys writing on email clients as well as data migration. He is always excited about giving troubled readers the most up-to-date knowledge, explanation, and refinements.