Can't watch on either Chrome or Firefox. Apple are real gits.
http://www.mpegla.com/main/programs/MPEG-DASH/Pages/Intro.as...
Otherwise, include a js player with HLS support for other browsers.
Besides that, I would rather complain that Apple is using an obscure format than complain that Mozilla and Google don't support an obscure format.
EDIT: sorry, it seems mobile Chrome is supposed to work, but it just... doesn't. Still don't see any reference for firefox, though.
Both work well with JavaScript based implementations of HLS, such as VideoJS's HLS plugin: