4 Ways to Fix an Add-on for This Website Failed to Run Error

Turning off your extensions might do the trick

by Ivan Jenic

Ivan Jenic

Passionate about all elements related to Windows and combined with his innate curiosity, Ivan has delved deep into understanding this operating system, with a specialization in drivers and… read more


Fact checked by
Alex Serban

Alex Serban

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

  • Internet Explorer has a long history with Windows 10, and so is the list of issues associated with it.
  • The article below will showcase what you can do when an add-on fails to launch in IE.
  • This error is usually encountered on older Windows iterations and solely in IE.

edge-w11 an add on for this website failed to run

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The Add-on for the website failed to run error is usually encountered on older Windows versions. It was an Internet Explorer-specific error, but since the browser has been replaced with Microsoft Edge it isn’t anymore.

Today we will address this issue, and present you with a list of methods that you can apply in Microsoft Edge as well as Chrome to fix it.

Why am I getting an add-on for this website failed to run?

The error message explains that an irregular behavior on the part of one of your browser’s add-ons was the root cause of the error message that was thrown by the browser.

It is not known for sure if the situation was misunderstood by your browser or whether the add-on encountered a fault along the route. In spite of this, we are ready with responses for every contingency that may arise. Keep on reading!

Users reported similar issues which we have addressed in the following section. Some of the most common errors are the following:

  • Internet Explorer an add-on for this website failed to run
  • An add-on for this website failed to run in IE11 on Windows 10
  • An add-on for this website failed to run in Edge
  • Java: an add-on for this website failed to run
  • An add-on for this website failed to run in Active
  • An add-on for this website failed to run in Chrome

Without further ado, let’s see what you can do if you get the An add on for this website failed to run error message. Follow along!

How do you fix an add-on for this website failed to run?

1. Allow IE mode

  1. Open Edge and click the three dot-menu followed by Settings.settings-edge-menu an add on for this website failed to run
  2. Next, navigate to Default browser and change the option next to Allow sites to be reloaded in Internet Explorer mode (IE mode) to Allow.allow-IE an add on for this website failed to run

In addition to all of the new features and enhancements that have been added to the version of Microsoft Edge that is powered by the Chromium engine, Microsoft has also included a compatibility mode that loads older webpages by employing the rendering engine from Internet Explorer.

2. Turn off your extensions in Edge

  1. Open Edge then click the three-dot menu followed by Extensions. ext-edge an add on for this website failed to run
  2. Next, select Manage Extensions.manage-ext an add on for this website failed to run
  3. Here, click the toggle button next to all your extensions to turn them off then check whether the An add on for this website failed to run error is gone.

3. Turn off extensions in Chrome

  1. If you got An add on for this website failed to run, start a new Chrome window and click on the three-dot menu followed by More tools and Extensions.extensions-chrome your connection was interrupteda network change was detected. err_network_changed
  2. Next, turn off the toggle next to all of your extensions to fix the issue in Chrome.disable-ext your connection was interrupteda network change was detected. err_network_changed

4. Reset browser

Edge

  1. Open Edge and click the three-dot menu followed by Settings.settings-edge-menu an add on for this website failed to run
  2. Here, navigate to Reset settings followed by Restore settings to their default values.reset-edge an add on for this website failed to run
  3. Click Reset and you’re done!

Chrome

  1. Resetting Google Chrome will turn off all its extensions, which might fix the error. Start by clicking on the three-dot menu followed by Settings.chrome-settings windows 10 blocking chrome install
  2. From the left menu select Reset and clean up.
  3. Next, click the Restore settings to their original defaults option.restore-settings windows 10 blocking chrome install
  4. Finally, click Reset settings.reset-settings-yes windows 10 blocking chrome install

Remember that restarting your browser will delete all of your saved settings and preferences (for example, saved passwords, history, your home page, and saved website-handling information). It is not possible to erase your Favorites.

After restarting your PC, the Add-on for the website failed to run error should now be fixed.

On rare occasions, when this error message still pops up after running all the four troubleshooting fixes in this tutorial, you can contact the Microsoft support team.

We recommend that you also take a look at our post on the 7 best extensions to speed up Chrome.

Don’t hesitate to leave a comment in the section below and share your thoughts with us. Thanks for reading!

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