Since Firefox version 52 was released March 7, 2017, installed NPAPI plugins have not been supported in Firefox, except for Adobe Flash Player. Some of the plugins that no longer load in Firefox, even though they may be installed on your computer, include Java, Microsoft Silverlight and Adobe Acrobat.

• Is Silverlight Still Supported
• Game Support Microsoft Silverlight Free
• End Of Silverlight
• Microsoft Silverlight Game Support

Over the past few years, Firefox has implemented various Web APIs so that websites can do the same things they’ve always done without plugins, so you will most likely not notice any change to your browsing experience.

• Microsoft Silverlight will reach the end of support on October 12, 2021. Even though Silverlight is still supported by Microsoft, active development was stopped several years ago. Right now, Silverlight is only supported on Internet Explorer 11. Silverlight enabled developers to build both desktop and web applications.
• Silverlight will reach the end of support on October 12, 2021. Silverlight development framework is currently only supported on Internet Explorer 10 and Internet Explorer 11, with support for Internet Explorer 10 ending on January 31, 2020. There is no longer support for Chrome, Firefox, or any browser using the Mac operating system.

Microsoft Silverlight. Software Rating: 4/5. Compatible OS: Windows, Android, and iOS.

The internet is full of websites that go beyond static pages, such as video, sound and games. While NPAPI plugins, especially Flash, have helped enable these interactive pages, they also make your browsing slower, less secure and more likely to crash.

Over the past few years, Firefox has worked hard to build replacements for these plugins, these replacements are called Web APIs. Web APIs are designed to replace the function of the NPAPI plugins without undermining your internet security, stability and performance.

Before, while these Web APIs weren’t quite ready, Firefox started to transition by making plugins load manually (click to activate).

Now, many sites have adopted Web APIs, and almost all your favorite pages can be enjoyed without using old and insecure plugins. Firefox joins other modern browsers like Google Chrome and Microsoft Edge by removing support for these NPAPI plugins.

We recommend that you update Firefox if you can.

Every update of Firefox includes important fixes and improvements, including improvements that help keep you secure on the Internet. Using an old version of any browser, including Firefox, puts your personal data and even your computer at risk.

Firefox has expanded to support features that used to require extra plugins. Plugins, on top of that, are also kept up-to-date automatically and managed through blocklisting for added security. So you can stay current with just one Firefox update.

This article provides information about resolving various errors reported by online games in Internet Explorer.

Original product version: Internet Explorer 9 and later versions
Original KB number: 2528246

Summary

When playing online games from websites like Facebook, Yahoo, MSN, and other websites using Internet Explorer you may notice that the online games may not perform as expected. Playing or attempting to play online games may give the following results:

• Games may fail to download
• Games will not start
• Games may not load completely
• Some game functionality may not work
• You may be dropped from a game or game website when playing a game
• Your screen may go black when playing a game
• Games may freeze during play

Note

If you are having issues with Internet Explorer functionality other than just games, see Tips for solving problems when Internet Explorer crashes or stops working.

More information

The most common cause is a missing or outdated add-on that's needed to play the game. Most online games are based on Silverlight, Flash, or Java and do require Internet Explorer add-ons to function. In most cases, ensuring that you have the latest updates for Windows, Internet Explorer and any Internet Explorer add-ons can help resolve most issues. To troubleshoot online games issues in Internet Explorer do the following:

Internet Explorer

If you are using ActiveX Filtering or Tracking Protection in Internet Explorer 9 or a later version, some content like games or videos might be disabled. To find out if you are using ActiveX filtering or Tracking Protection, see one of following articles:

• Use ActiveX controls for Internet Explorer 11.

Microsoft Silverlight

For games that use Silverlight, issues can be resolved by updating to the latest version of Silverlight. The following troubleshooting steps may help to resolve the issue:

Is Silverlight Still Supported

• Install the latest version of Silverlight and then make sure Silverlight is enabled in Internet Explorer
• If you need to uninstall and then reinstall Silverlight visit the Get Microsoft Silverlight website and click the Uninstall Silverlight tab
• For help with Silverlight issues, visit the Silverlight Community website

Java

For games that require Java add-ons, issues can be resolved by updating the add-ons to the latest version. The following troubleshooting steps may help to resolve the issue:

Game Support Microsoft Silverlight Free

• Make sure you have the latest version of Java installed
• In some cases, it may be necessary to uninstall Java from your installed programs list and then reinstall the latest version
• For help with Java issues, visit the Java Help Center website

Adobe Flash

For games that require Java add-ons, issues can be resolved by updating the add-ons to the latest version. The following troubleshooting steps may help to resolve the issue:

End Of Silverlight

• Update to the latest version of Adobe Flash
• In some cases, it may be necessary to uninstall Adobe Flash from your installed programs list and then reinstall the latest version
• For help with Adobe Flash issues, visit the Adobe Flash Help and Support website

Adobe Shockwave Player

For games that require Adobe Shockwave Player add-ons, issues can be resolved by updating the add-ons to the latest version. The following troubleshooting steps may help to resolve the issue:

• Update to the latest version of Adobe Shockwave.
• In some cases, it may be necessary to uninstall Adobe Shockwave Player from your installed programs list and then reinstall the latest version.
• For help with Adobe Shockwave issues, visit the Adobe Shockwave Player Help and Support website.

Make sure the add-ons are installed and enabled

You will need to make sure that the necessary Add-ons are enabled in Internet Explorer, to do this follow the steps below:

1. Start Internet Explorer and click the Tools icon and then click Internet Options.
2. Click the Programs Tab and click the Manage add-ons button.
3. From the Show dropdown selection, select Run without Permissions.

Look for the following add-ons in the displayed list and make sure the Status is listed as Enabled.

Note

When checking to see if the add-on is installed you can also verify the current version of the add-on.

Microsoft Silverlight Game Support

• The add-on for Microsoft Silverlight is listed as:

  • Microsoft Silverlight

• The add-ons for Adobe Flash and Adobe Shockwave Player are listed as:

  • Shockwave Active X Control
  • Shockwave Flash Object

• The add-on for Java is listed as:

  • Java Plug-in (May be multiple add-ons)