Here's hoping that a viable non-Mozilla group emerges that will offer a DRM-disabled version of Firefox, one that is addon-compatible and which pulls in all non-DRM-related upstream changes. Mozilla has lost my support over this decision.
Fun fact, if you have used Youtube, you have probably consumed DRMed content via Flash's RTMPE support.
These two things are 100% contradictory, and the fact that they are so is the entire point of the discussion of adding EME/CDM support. You might want to try to understand the situation before you make comments as "Mozilla has lost my support over this decision."