YouTube Now Defaults To HTML5 Instead Of Loathed Adobe Flash

It was only yesterday that we wrote about an Adobe Flash exploit’s resurgence. Today brings more bad news for Adobe Flash, but without any new security concerns: YouTube has officially bumped Adobe Flash for HTML5 as its default video delivery platform.

YouTube uses HTML5 for videos in Chrome, beta versions of Firefox, Internet Explorer 11, or Safari 8. Google is encouraging people who embed videos to use the <iframe> API instead of the <object>, because the former can use whatever technology the client supports.


Google has been keeping an eye on HTML5 as an alternative to Flash for at least four years. In its announcement, Google listed several reasons it’s excited about HTML5, not the least of which is the VP9 video code. “HTML5 lets you take advantage of the open VP9 code, which gives you higher quality video resolution with an average bandwidth reduction of 35 percent,” Google said in a statement. “These smaller files allow more people to access 4K and HD at 60FPS – and videos start 15-80 percent faster.”

Other pros to using HTML5 include Adaptive Bitrate (ABR) streaming, which supports Xbox, Chromecast, and other devices, as well as new fullscreen APIs.