Use the Silverlight plugin to play audio and video
Microsoft Silverlight is a plugin used by some websites to display multimedia content. This article describes how to check whether you have Silverlight installed and how to install or update it.
Silverlight is not available for the Linux platform and the only open source implementation of Silverlight, called Moonlight, is not developed anymore. It can be still compiled from source but it is not recommended to use it. More information can be found at the Moonlight installation page.
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Checking for Silverlight
To determine whether you have the Silverlight plugin installed, visit Microsoft's Get Microsoft Silverlight page.
If Silverlight is installed, you will see a message with your Silverlight version.
If you do not have Silverlight installed, follow the Installation Instructions on Microsoft's Get Microsoft Silverlight page.
If Silverlight is installed but your version is outdated, the Get Microsoft Silverlight page will show your installed version and the current version of Silverlight.
Click the current version link to manually download and install the latest version of Silverlight.
To uninstall Silverlight, follow the Uninstall Silverlight instructions on Microsoft's Get Microsoft Silverlight page.
Silverlight is installed but does not work
Mozilla blocks older versions of Silverlight, causing sites like Netflix to display a message asking you to install Silverlight. To fix this, please update your installation of Silverlight to the latest version by visiting Microsoft's Get Microsoft Silverlight page.
In some cases, this may not resolve the problem and you will need to manually activate the Silverlight plugin:
At the top of the Firefox window, click on the buttonOn the menu bar, click on the menuAt the top of the Firefox window, click on the , and then click menu . The Add-ons Manager tab will open. Click the menu button and choose . The Add-ons Manager tab will open.
- In the Add-ons Manager tab, select the panel.
- Find Silverlight in the list of plugins and select in its drop-down menu.
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