Silverlight (2007–2021) was Microsoft’s answer to Adobe Flash. It supported .NET-based development, DRM video (PlayReady), and hardware-accelerated graphics. On macOS, Silverlight was available as a Safari and Firefox plugin until Apple and Microsoft phased out NPAPI (Netscape Plugin Application Programming Interface) support.
After installation, you may need to configure Silverlight to work with your web browser. Here are the steps for some popular browsers: silverlight plugin for mac
If you encounter a legacy internal tool or an archived site that still requires Silverlight, you may face significant hurdles: After installation, you may need to configure Silverlight
Microsoft Silverlight is a deprecated web application platform that was used to create multimedia-rich web applications and mobile applications. Although it's no longer supported, we can still discuss how to install and use the Silverlight plugin on a Mac. DRM video (PlayReady)