conditionizr/conditionizr — pull request #4 by Datrio (2013-02-08 06:52:34+00:00)
Title: Adding support for IE, Firefox and Opera for retina display detection

I'm not suppling a minified version, since I'm not sure what minifier are you using.

This should add support for all the Windows Phone devices, older Firefox devices on the desktop, the upcoming Firefox OS devices (if they'll support retina) and also Firefox for Android.