If you happen to have OS X 10.10 Yosemite installed on your Mac, you can try out Netflix’s HTML5-based video by simply logging into your Netflix account. Netflix previously required a plugin such as Microsoft’s Silverlight when viewing a video.
“Congratulations to the Apple team for advancing premium video on the web with Yosemite! We’re looking forward to the Yosemite launch this Fall,” Netflix engineering executives Anthony Park and Mark Watson wrote on the Netflix blog, announcing the move.
While Silverlight was required for a number of reasons, including digital right management, encrypted Media Extensions and WebCrypto address concerns about digital rights management, allowing end-to-end encryption of the media stream, thereby preventing users from capturing the stream and saving it to their hard drive as it streams in.