DownloadThemAll Not Working in Firefox? 3 Simple Ways to Fix It

Downloads depend on many factors, so correct the issue now

by Ola-Hassan Bolaji
Ola-Hassan Bolaji
Ola-Hassan Bolaji
A Computer Engineering graduate, he has spent most of his life reading and writing about computers. Away from computers, he is either reading or watching football! read more
Fact checked by Alex Serban
Alex Serban
Alex Serban
Browser & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
Affiliate Disclosure
  • The Download Them All extension might not work on Firefox due to a counter add-on on the browser.
  • You can fix the issue by uninstalling DownThemAll and installing the latest version.
  • Another quick fix is to disable all extensions aside from DownThemAll.
download them all not working firefox
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The DownThemAll extension, otherwise known as Download Them All, is one of the best Firefox extensions you can use. It is a great productivity add-on that allows you to download multiple files simultaneously.

This add-on also helps to organize your files and considerably reduces download time. However, users are starting to complain that the Download Them All extension is not working on Firefox.

This has slowed down the work of most people and has been frustrating. This guide will show you how to make the extension again on Firefox. 

Why are downloads not working in Firefox? 

Downloads depend on many factors on Firefox and other browsers. If any of them fails, you might encounter problems.

Below are some of the reasons your downloads are not working on Firefox:

  • Poor internet connection
  • Dangerous download file
  • Interference from antivirus software
  • Corrupt browser data

Quick Tip:

Install the extension to a more responsive browser. We recommend Opera because it’s fast, and uses fewer system resources. Because it runs on a Chromium engine, Opera supports all Chrome extensions.

The Download Them All app is not available in the Opera add-on store, but just open its Chrome Webstore page from Opera and click on the Add to Opera button to install it.


Use DownloadThemAll on Opera for fast downloads and an error-free experience!

How can I fix the Download Them All extension if it’s not working on Firefox?

1. Remove and reinstall the extension

  1. Launch Firefox and click the menu button (three horizontal lines) in the top right corner.
  2. Select the Settings option.
    settings download them all not working firefox
  3. Choose the Extensions & Themes option in the left pane.
    extensions download them all not working firefox
  4. Click the more button before the DownThemAll extension.
  5. Click the Remove option.
    extension more
  6. Now, click the Remove button when prompted to confirm the action.
    remove download them all not working firefox
  7. Visit the Mozilla addons store to download the latest version of DownThemAll.
  8. Click the Add to Firefox button.
    add to
  9. Click the Add button when prompted, and the extension will be installed on your browser.

The DownThemAll developer has recently released a new version of the extension. This has rendered the old one redundant.

Hence, if you are still running the older version, it might be the reason Download Them All is not working on your Firefox browser.

2. Update Firefox

  1. Launch Firefox and click the menu button.
  2. Click the Settings option.
    settings download them all not working firefox
  3. Scroll down and click the Check for updates button under the Firefox Updates section. 
  4. This will show you the available updates to install.

The latest Download Them All extension is not working on outdated Firefox versions. So, to have any chance of using the extension, you need to keep your browser updated.

Remember to relaunch your browser after the update to sync the changes.

3. Disable other extensions

  1. Click the menu button on Firefox and select the Settings option.
  2. Choose the Extensions & Themes option in the left pane.
    extensions and themes
  3. Toggle the switch before all extensions aside from DownThemAll backward to disable them.
  4. Restart your browser.

If you have too many extensions on your Firefox, one of them might be stopping Download Them All from working well. It might be because it contains a counter program that can disrupt the activity of DownThemAll. 

This fix is especially useful if you noticed the problem after installing some extensions. If you can pinpoint the exact add-on causing the issue, you disable them and use the elimination method to know the faulty one.

When the Download Them All extension stops working on Firefox, it puts a lot of tasks on hold and limits your productivity. Thankfully, it is not the most difficult problem to solve, as shown in this guide.

Are you facing other extension-related problems like Video DownloadHelper not working in Firefox? You should check our guide on the topic to know how to resolve the issue.

Feel free to let us know the fix that worked for you in the comments below.

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