Turning off your extensions might do the trick
by 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
Updated on July 27, 2022
Fact checked by
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.
- 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. 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
Quick Tip:
Incompatibility with add-ons on certain pages is a typical issue for most browsers, but not for Opera. When you have a lot of them in your browser, a fully-supported web crawler is a convenient ally.
The extensions page is where you can find extensions that you have added to your Opera browser. There, you may switch extensions on and off, as well as change their settings or troubleshoot them.
Opera
The Extension manager in this browser is essential for most of us.
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
- Open Edge and click the three dot-menu followed by Settings.
- Next, navigate to Default browser and change the option next to Allow sites to be reloaded in Internet Explorer mode (IE mode) to Allow.
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.
- 3 Easy Ways to Continue Using Internet Explorer on Windows 11
- Fix: Allow Sites to be Reloaded in Internet Explorer Mode Missing
- How to Fix Configure IE Integration Missing in Group Policy
2. Turn off your extensions in Edge
- Open Edge then click the three-dot menu followed by Extensions.
- Next, select Manage Extensions.
- 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
- 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.
- Next, turn off the toggle next to all of your extensions to fix the issue in Chrome.
4. Reset browser
Edge
- Open Edge and click the three-dot menu followed by Settings.
- Here, navigate to Reset settings followed by Restore settings to their default values.
- Click Reset and you’re done!
Chrome
- 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.
- From the left menu select Reset and clean up.
- Next, click the Restore settings to their original defaults option.
- Finally, click Reset settings.
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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If you use the Internet Explorer browser, you may deal with several problems while loading a page with ActiveX/Java Uploader or Downloader.
When you are faced with any Java difficulties, first you should visit the www.java.com/verify web page and ensure that you have the latest Java version by following the update instructions that will appear on the screen.
You may need to deal with one of the following issues:
- An add-on for this website failed to run
- Installing Java
- Running Java
- Enabling Java
- The Java applet does not upload files
- SecurityException and a warning message
The article below describes solutions for these problems.
An add-on for this website failed to run
Lately there are many reports from our users that they can’t run ActiveX uploader in Internet Explorer browser. While trying to install the application, you can receive an error message «An add-on for this website failed to run«:
In this case you should completely close the browser and run it as Administrator (right-click on Internet Explorer and select «Run as Administrator«).
Alternatively, you can use Stand-alone installer for IE users from our Downloads page: http://www.aurigma.com/downloads/upload-suite. However, you should know exactly which version to install. For this, you must contact the website administrator.
Installing Java
If your computer does not have an installed and enabled version of the Java, when you try to open a page with the Java applet, the browser asks you to install the add-on:
You should click the Install button and follow instructions on the Java downloading and installation page. Do not forget to restart the browser after Java installation.
Running Java
When you open a page with the Java applet, you may see the following pop-up asking you to run the add-on:
To let the Java plug-in run on the website, you can perform one of the following actions:
- Choose Allow from the list to run the Java applet only for this website
- Choose Allow for all websites from the list to run the Java applet for all websites
- Use Manage Add-Ons.
If you prefer using Manage Add-Ons option, you need to perform the following steps:
- Open Manage Add-Ons
- Select the Java plug-in and click the More information button (selected with the red rectangle):
- To allow the Java to run for all websites click the Allow on all sites button (selected with the red rectangle):
- Refresh the webpage
Enabling Java
When you try to open a page with the Java applet, you may see neither the applet nor any message:
This means that Java is disabled in browser settings. In that case you need to open Manage Add-Ons, select the Java plug-in, click the Enable button (selected with the red rectangle) and refresh the page:
The Java applet does not upload files
If a web page with Java Uploader or Downloader displays correctly, but does not upload or download chosen files, this may mean two things:
- You are using outdated Java (below Oracle’s security baseline).
- Java security settings are set too high.
The first thing you should try is to make sure that you have the latest Java. You can do it on http://www.java.com/verify.
If you have the latest Java but it still does not work, check your security level:
- Open Control Panel → Programs → Java
- In the Java Control Panel choose the Security tab and move the security level cursor to High or lower:
- Click the Ok button and restart your browser
SecurityException and a warning message
While opening a page with Java Uploader or Downloader you may see the following security dialog with the warning message in the yellow box:
And after you run the applet, you see the SecurityException message instead of the uploader.
This means that the web page uses the old version of Upload Suite or File Downloader. You should report this security dialog as a potential problem to the support team of the website you are working with.
Hi,
mmm…. what are you doing surfing the web from server 2008… and worse yet hacking the IE security registry keys manually. (aym!)
«i do not know how to do next…»
Recover from a restore point (if you have one)
or
nuke and pave then patch (format then re-install the server 2008 sp2 os from your disks, then run windows update from the Start menu to update it with the latest patches. )
You may have to use IE to install additional software (your av for example).
IE on server 2008 runs in protected mode… you can only download from sites that are in the IE Trusted Sites list.
By default microsoft.com is the only site pre-listed in the Trusted Sites list, but to access downloads from technet or msdn you will need to add *.live.com to your trusted sites list so that your live login credentials
can be verified when you access technet or msdn downloads. You may need to add additional sites to your Trusted Sites in order to download from those sites using IE…
DO NOT
…Alter IE’s Security Zone settings on Windows server versions. Always ensure you are using the default security zone settings (Tools>Internet Options>Security tab, click «Reset ALL security zones to default»). Protected Mode should be left switched
ON.
…install ANY additional IE Addons or ActiveX controls… it comes pre-installed with all you need. You can install additional search providers from iegallery.com so that you can do web searches from the server (remote in from your desktop) when trouble
shooting issues…the pre-installed «Bing» default search provider should be adequate for your needs to troubleshoot widnows server installation and maintenance issues.
….use IE on windows server versions for casual web surfing or web application testing…. you can do that from your client workstation without putting the security of your servers and your company networks at risk. There is absolutely no reason to develop
web sites or desktop application or web services on a server box… you can do it all from a desktop client version of windows and then publish it to your servers.
Finally, take the keyboard and screen off and lock the box in the comms cupboard/room. Use Windows Remote Desktop to access your server from your desktop workstation.
I am sorry…. it realy is that serious… security on servers cannot be taken lightly….
Do not be afraid to ask your work colleagues for help… better that you put your hand up and ask for help now, rather than find later on that you have left the door open.
Regards.
Rob^_^
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Proposed as answer by
Friday, February 24, 2012 8:32 AM
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Marked as answer by
Leo Huang
Friday, March 2, 2012 8:39 AM