From now on, the web-Version of Horizon Go uses a HTML5 and DASH based streaming solution on specific browsers. Thus, compatibility issues between Silverlight and various browsers / operating systems are largely history. However, some browsers still need Microsoft Silverlight.
This is how you can use Horizon Go:
Mozilla Firefox (V.52 onwards)
HTML5 (when activated, else Silverlight)
Mozilla Firefox (till V.52)
Internet Explorer 11
Internet Explorer 10
The introduction of the Apple-specific technologies HLS and FairPlay Streaming is planned.