How to Fix an Add On for This Website Failed to Run [Edge, IE]

Turning off your extensions might do the trick

Browsers

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by Ivan Jenic 

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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.

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.

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

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

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.

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

More about the topics: browser, Internet Explorer Issues

Ivan Jenic

Ivan Jenic Shield

Windows Hardware Expert

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 driver troubleshooting. When he's not tackling diverse driver-related problems, Ivan enjoys watching good movies and spending time hiking with his family and friends.

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