How to MBOX to Thunderbird With Attachments? Simple Steps
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You can import MBOX to Thunderbird using the free ImportExportTools NG add-on or by adding MBOX files directly to Thunderbird profile folder. If you want to import multiple MBOX files at once using dedicated MBOX to Thunderbird converter can simplify the process entire process.
Thunderbird is a free email application that helps users organize their emails. Emails saved in MBOX files from another email app or an old backup, you may want to import them into Thunderbird. You can also learn how to export MBOX files from Thunderbird to back up your emails or transfer them to another email client. In this blog, we will explain three simple methods to import MBOX files into Thunderbird, including manual methods and a professional tool for importing multiple MBOX files easily.
Why Open MBOX File in Thunderbird Account?
Users can thunderbird import MBOX for several reasons are:
- People export MBOX from Apple Mail or any other email clients when they move from macOS to Windows.
- Access old backups or archived mailbox data whenever users need without relying on the original email service.
- Thunderbird is a free desktop email application that lets users easily handle their archived MBOX emails.
- If you want to export MBOX from Gmail using Google Takeout into Thunderbird for easy access.
Free Method to Import MBOX to Thunderbird Application
There are two manual methods to open MBOX file in a Thunderbird account using the ImportExportTools NG add-on and moving the file to the Mail folder in the profile.
Core Update: In earlier versions of Thunderbird, users can import .mbox files without any account configuration or using the setup later method. However, with the update to the latest version 156.0. Subfolders like “IMAPMail” and “Mail”, where emails are stored, are not created in profiles until account addition.
Method 1: Import MBOX into Thunderbird Using Add-ons
Following are the steps to import MBOX files into Thunderbird using ImportExportTools NG add-on:
- Install and set up Thunderbird with any mail account on your computer.
- Click on “Add-Ons and Themes”.
- Next, search for ImportExportTools NG add-on.
- And click on the “Add to Thunderbird” icon.
- Go to Local Folders in Thunderbird (on the left-hand side in the Folder pane).
- After that, select the “ImportExportToolsNG” option.
- Select the “Import MBOX Files” and click on the “Individual MBOX Files” option.
- Browse the MBOX file from your computer & tap the “Open” button.
- See the imported MBOX file under Local Folder in Thunderbird.
Disclaimer: You can only add MBOX files in the local folder of Thunderbird and not under the configured account with the ImportExportTools NG.
Limitation of This Method
While you try to Import MBOX to Thunderbird with this manual technique, you may suffer from the following issues:
- In this way, the possibilities of getting broken inline images present in the MBOX file are very high.
- You can get misplaced MBOX mailboxes and erroneous header information.
- May get some missing email attachments of MBOX files during the process of opening the MBOX file in Thunderbird.
- This solution of how to add MBOX file to Thunderbird sometime does not maintain the actual folder structure.
- User also encountered an error like “Import MBOX Grayed Out” and “ImportExport NG” not downloading.
Note: You can remove your account after you have added MBOX files to Thunderbird local folders.
- Go to the Hamburger Menu (Three Lines).
- Open Account Settings.
- Press the Delete button at top & confirm removal.
Method 2: Add MBOX Files to Thunderbird Profile Folder Directly
This method to import MBOX to Thunderbird involves direct modification of the Thunderbird Profile folder.
Choose this method only if you’re specifically looking for a free solution & ImportExport NG add-on is either incompatible with your Thunderbird version or fails to display any emails after importing MBOX file into Thunderbird.
Important Tip: Backup Thunderbird profile to an external hard drive to avoid data loss in case of accidental deletion of data.
- Copy MBOX Files from their location.
- Open Mozilla Thunderbird.
- Click Hamburger Menu >> Help >> Troubleshooting Information.
- Open Profile Folder.
- Close Thunderbird.
- In the Profile Folder, open “Mail” folder.
- Paste MBOX files.
- Open Mozilla Thunderbird to view MBOX files.
Limitation of This Method
- Technically complicated for a beginner user & prone to accidental data loss.
- Also, this manual way doesn’t support all platforms’ exported MBOX files.
Troubleshooting Tips
- Large Files: If you are trying to import large MBOX files to Thunderbird, be patient & ensure Thunderbird is not interrupted during import process.
- Compatibility Issues: Please ensure when you import MBOX into Thunderbird without having any corruption in files. If you encounter issues, then use repair MBOX files
Professional Way to Import MBOX to Thunderbird on MacOS & Windows?
The manual methods can be slow and need extra effort, particularly for bulk imports. For a quick and easy process, using dedicated BitRecover MBOX Converter Tool can simplify the entire process. With the help of this software, you can open MBOX file in Thunderbird if your ImportExportTools NG is not working. Users can import MBOX in Thunderbird in bulk or select individual MBOX files or an entire folder containing multiple files. It also preserves email details like attachments, headers & formatting in their original form. The tool supports both Mac and Windows operating systems. It generates a log report that helps you track the import process and review its details
How to Import MBOX File in Thunderbird?
This tutorial explains how to import MBOX files into Thunderbird. Follow steps below to complete the process:
- Firstly, launch the software & choose one option from “Select Files” or “Select Folders” for adding .mbox files.
- Choose the required files, and press the “Next” button.
-
Thereafter, select Thunderbird as saving option.
- Finally, click on “Convert” button to import MBOX to Thunderbird profile.
Top Features of MBOX to Thunderbird converter?
- Compatible with MBOX files of all desktop and cloud-based email programs such as Apple Mail, Eudora, Opera Mail, Spicebird, Postbox, Claws Mail, Alpine, Netscape, Mail Copa, Earthlink, Pocomail, and all.
- The software is skilled enough to import MBOX to Thunderbird in bulk, together with attachments. Also, not only the current MBOX emails, but they can also import old emails to Thunderbird without any hitches.
- This tool can simply add multiple data files and folders in bulk at one time without losing any information or details.
- Also, it maintains the original data and components like email headers and email body details with attachments.
- The best thing is that it also offers a trial edition which is completely free of cost and let the user test the tools’ efficiency before getting the paid one.
FAQs: Import MBOX in Thunderbird
1. Can Thunderbird open MBOX files?
Yes, Thunderbird can open MBOX file data with attachments because it supports and exports its data in this file extension.
2. Where are Thunderbird MBOX files located?
Often, the location of Thunderbird MBOX files is “AppData\Roaming\Thunderbird\Profiles”
3. Does expert solution import my MBOX files directly into my Thunderbird account?
Yes, just don’t change location during process. It will locate the path and import MBOX to Thunderbird account.
4. Does this software support corrupted or inaccessible Thunderbird profiles?
Yes, it will load the default location and will save your data, whether your profile is working or not. You can even change any other path as per your choice.
5: How to open an MBOX file in Thunderbird without an account?
Users can import MBOX files into Thunderbird without configuring a profile, but it can be inconvenient & may require additional steps or add-ons. MBOX to Thunderbird Software simplifies the task by allowing users import MBOX files without configuring an email account without any hassle.
6: I have followed the steps, and yet nothing shows up after import?
There can be many reasons why importing MBOX files into Thunderbird may show up empty:
- Corrupted input files
- Incompatible architecture
- Imported MBOX may be empty
7: Does this support macOS?
Yes, the MBOX to Thunderbird Converter by BitRecover supports both macOS and Windows, so users can easily import MBOX files based on their operating system.
Final Thoughts
As discussed, these manual methods to import MBOX to thunderbird work well for basic requirements. They may not be suitable for importing large MBOX files or if you want to retain complete data integrity accurately. For users who want a quick, reliable and bulk import solution with complete data integrity, the BitRecover Thunderbird Importer works best. It simplifies the entire task. So, select method that works best as per your needs & import your MBOX files into Thunderbird with confidence.






