# Viewing Presentations on a Mac

Presentations will only play on Macs using OS X 10.4.8 or later. ## Browser Requirements on a Mac The following browsers will play Mediasite presentations on a Mac: Safari 2.0.4 or later (3.0.4 or later recommended) Firefox 2.0 or later ## Download the Silverlight plug-in The Silverlight plug-in allows you to view presentations on the Mac. Click the Get Microsoft Silverlight logo in the video screen to download and install the plug-in. ## Still not working? Contact your Mediasite administrator to make sure that HTTP streaming is enabled on the media server on port 80.