Adding DRM to Firefox
Video streaming sites, such as Netflix and Hulu, have traditionally used non-free plugins, such as Flash and Silverlight, to perform DRM functions. Interest to move these services to the new HTML5 video tag, however, requires a mechanism to handle the DRM naughty bits. The W3C EME specification describes such a beast, but involves a non-free CDM binary. Here is Mozilla's take on the matter.
That said, I almost always choose the open source and free software option when available and listen to music via radio... because I generally value all of this stuff becoming lingua franca across all economic and accessibility classes...
There is probably a contradiction in here somewhere...