Add-on for the Website Failed to Run [FIX]

by Ivan Jenic
Ivan Jenic
Ivan Jenic
Troubleshooting 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... read more
Affiliate Disclosure
  • 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.
  • To read more about this amazing browser, check out our dedicated Internet Explorer Hub.
  • If you want to know more about browsers in general, visit our dedicated Browsers page.
add on for the website failed to run
Strugling with your current browser? Upgrade to a better one: OperaYou deserve a better browser! 350 million people use Opera daily, a fully-fledged navigation experience that comes with various built-in packages, enhanced resource consumption and great design. Here's what Opera can do:

  • Easy migration: use the Opera assistant to transfer exiting data, such as bookmarks, passwords, etc.
  • Optimize resource usage: your RAM memory is used more efficiently than in other browsers
  • Enhanced privacy: free and unlimited VPN integrated
  • No ads: built-in Ad Blocker speeds up loading of pages and protects against data-mining
  • Gaming friendly: Opera GX is the first and best browser for gaming
  • Download Opera

The Add-on for the website failed to run error is usually encountered on older Windows versions and solely on Internet Explorer. The error prevents users from logging in or accessing certain websites.

One user shared his concerns on the Microsoft Answers support forum.

I’m running Windows 8.1 with internet explorer 11.  I just started getting addon failed to run when I go to logmein and other web sites, that I haven’t had a problem until recently.  Don’t recall doing anything to Internet explorer…

Fix this Internet Explorer error by following the steps below.

How do I fix a failed add-on?

1. Modify security settings in Internet options

  1. Launch Internet Explorer.
  2. On the homepage, navigate to the Tools icon and click on it.
  3. Locate and select Internet options.internet options IE add on for the website failed to run
  4. Click on Security.
  5. Locate and select Internet > Custom Level.
  6. Activate/enable the following settings:
    • Active Scripting
    • ActiveX Controls and Plug-ins
    • Automatic prompting for ActiveX controls
    • Binary script behaviors
    • Run ActiveX controls and Plug-ins
    • Script Active X controls marked safe for scripting
    • Miscellaneous
    • User Data Persistenceinternet zone enable settings add on for the website failed to run

7. Save changes and exit the program.

2. Run the browser without add-ons (Windows 7)

  1. Click on the Windows icon to open the Start
  2. In the menu, click on All Programs.
  3. Select Accessories.internet explorer start menuAdd on for the website failed to run
  4. Click on System Tools > Internet Explorer (No Add-on).
  5. Exit program and check if the issue is resolved

If you are still getting the error message after running this procedure, you can try the next troubleshooting method.

3. Manage add-ons on Internet Explorer

  1. Open the Start menu: click on the Windows icon on your screen display.
  2. In the menu, locate the search bar and key in Internet Explorer.
  3. Select Internet Explorer on the list of search results.
  4. On the browser‘s homepage, locate and click on the Tools icon.manage add-ons internet explorer add on for the website failed to run
  5. Select Manage Add-ons.disable add on Internet Explorer add on for the website failed to run
  6. Disable the add-ons one by one, until you identify the problematic one(s).
  7. Re-enable other add-ons.
  8. Close program.

4. Reset browser

  1. Launch the browser.
  2. Navigate to the Tools icon and click on it.
  3. Select Internet options on the displayed window.internet options IE add on for the website failed to run
  4. Locate and click on the Advanced tab.
  5. Click on Reset under the tab. This action will prompt up a confirmation dialog box, with reads – Reset Internet Explorer Settings.
  6. Click on Reset in the dialog box to confirm the actionreset internet explorer add on for the website failed to run
  7. Allow the system to reset the browser.
  8. Click Close > OK.
  9. Restart computer.

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.

idee restoro Still having issues? Fix them with this tool:
  1. Download this PC Repair Tool rated Great on (download starts on this page).
  2. Click Start Scan to find Windows issues that could be causing PC problems.
  3. Click Repair All to fix issues with Patented Technologies (Exclusive Discount for our readers).

Restoro has been downloaded by 0 readers this month.

This article covers:Topics: