cannot play Netflix video

Just installed the latest version of IceDragon. When trying to play a Netflix movie, I got a black screen with the following message ‘IceDragon is installing components to play audio and video on this page. Please try later’. But I did not notice any new component installed. I waited for several hours and restarted the browser. The problem is still there. Is there a plug-in or an extension to fix this? :-[