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why thunderbird importexporttools ng not working

Reasons and Solutions Why Thunderbird ImportExportTools NG Not Working

Posted on May 15, 2025 By Peter Lunding No Comments on Reasons and Solutions Why Thunderbird ImportExportTools NG Not Working

Summary: If you are a Thunderbird user, you must be aware of the importance of ImportExportTools NG. This add-on in Thunderbird helps you to swiftly import or export mail items such as folders, profiles, and messages to MBOX, EML, HTML, CSV, PDF, or plaintext. What if this add-on stops working? This might be a difficult situation. Let’s find proven solutions to deal with the issue.

The ImportExportTools NG is an integral part of Thunderbird because the extension allows import and export of messages, profiles, and folders in Thunderbird. Other advanced features of this add-on are file naming and search options.

Table of Contents

Toggle
  • Reasons Why Thunderbird ImportExportTools NG Is Not Working
  • Solutions to Fix ImportExportTools NG Extension Not Working in Thunderbird
    • 1. Configuration of an Email Account – Manual Solution
    • 2. Reinstallation of the Add-On (ImportExportTools NG)- Manual Solution
    • Steps to Run the Conversion Application
      • Conclusion

Reasons Why Thunderbird ImportExportTools NG Is Not Working

There could be several reasons why you have encountered Thunderbird.

  • The add-on might be corrupted or out of date.
  • Compatibility issues
  • Corrupted MBOX files
  • Any conflicts

Solutions to Fix ImportExportTools NG Extension Not Working in Thunderbird

The greyed-out situation occurs due to various reasons, as we have discussed already. Now, we address solutions to the issue both manually and automatically, hoping to provide you with the best solutions.

1. Configuration of an Email Account – Manual Solution

Several users try to import or access an MBOX file in Thunderbird directly without adding or configuring an email account or mailbox. In this situation, the ImportExportTools NG is greyed out, and the import process fails.

While using the ImportExportTools NG extension, adding a mailbox in Thunderbird is essential. After the configuration of the email account, the ImportExportTools NG option will be visible.

importexporttool

Once the extension is added, click on the specific mail folder or profile and take the cursor on “ImportExportTools NG” and select “import mbox file” to complete the process.

2. Reinstallation of the Add-On (ImportExportTools NG)- Manual Solution

In case you have updated Thunderbird, the previously installed add-ons, including ImportExportTools NG, can be corrupt or unable to perform their tasks. We recommend that you remove all uploaded extensions and install them again. In this way, you can fix the “ImportExportTools NG not working issue.

Here are the steps you can take for the reinstallation of the ImportExportTools NG in Thunderbird. Carefully, follow the given steps.

  • Access the Thunderbird account and click Tools > Add-ons and Themes.

add-on and themes

  • Locate the ImportExportTools NG extension and press the three dots to select Remove.

extensions

  • Confirm and click Remove again.

remove

  • Once the add-on is removed, navigate to Tools > Add-ons and Themes and search for ImportExportTools NG.
  • Press Add to Thunderbird.

add to thunderbird

  • Click Add to confirm the process of installation process.

confirm

Once the installation process is done, restart Thunderbird and use the add-on to learn the import or export process is successful.

Using the Thunderbird Converter- An Alternative Solution, the ImportExportTools NG fails to perform, and you are not able to fix the issue. The smart alternative is a reliable application. The WholeClear Thunderbird Converter is one of the best applications to convert Thunderbird to EML, EMLX, HTML, PDF, PST, NSF, TGZ, and a remote server. The application performs conversion without losing properties and attachments. The application is independent and enables conversion from Thunderbird to a range of file extensions without the assistance of third-party tools.

Download Now  Buy Now

Steps to Run the Conversion Application

  1. After installation, launch the application on your Windows system and select “Thunderbird Directory Location” and then “Next.”
  2. Select either “Load Thunderbird Default Location” or “Load Thunderbird Location Manually” to upload the required folder of Thunderbird in the tool.
  3. After that, select the file extension you want to export Thunderbird data, such as PST, EML, EMLX, HTML, PDF, TGZ, NSF, or server.
  4. Click Next and press the “Browse” button to select the local folder where you want to save the exported data.
  5. Click the “Convert Now” button to complete the process.

This is how you can convert data from Thunderbird to a desired file extension with the help of this advanced application.

Also read: Convert Thunderbird Mailboxes in Bulk

Conclusion

Like other email clients, Thunderbird has some technical issues that can be resolved either manually or automatically. If you are tech-savvy, you can opt for manual methods; otherwise, an automated solution is a safer alternative. Choose your recovery option carefully. It is advisable to follow a secure process to achieve the best results.

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