And for websites that have existing HLS content or workflows they would like to use with desktop browsers, they should check out solutions like Dailymotion's HLS.js polyfill. It tunnels HLS streams into the MSE API (used by DASH) available in Chrome, Firefox, IE/Edge, and Safari. Mozilla works closely with the HLS.js developers to help debug compatibility issues and regressions in Firefox or HLS.js.
http://engineering.dailymotion.com/introducing-hls-js/