HTML5 video
Support for HTML5 video has been steadily increasing. In June 2013, Netflix added support for HTML5 video. In January 2015, YouTube switched to using HTML5 video instead of Flash by default. In December 2015, Facebook switched from Flash to HTML5 for all video content.
Comparison of HTML5 and Flash
The table below compares the features of the Flash platform, the HTML5 specification and the features implemented in modern web browsers.Web browsers cannot render Flash media themselves. Instead, Flash is primarily rendered via the proprietary, but freely available, Adobe Flash Player. Until 2008, there was no official specification by which to create an alternative player. Alternative players have been developed before 2008, but they support Flash to a lesser degree than the official one.