One of the characteristics of cable TV is, precisely, that you don't get access to the content if you don't pay. DRM is one way of achieving this, and Mozilla in this case is accepting that without even a struggle.
If I understood the parent comment correctly, that is.
Mozilla fought the DRM implementation more than any other browser. They were at the point where they unfortunately had to implement it, otherwise their user base wouldn't be able to access services like netflix etc. At that point it's better to keep your user base instead of them switching to another browser and having no voice.
> We understand that Mozilla is afraid of losing users. Cory Doctorow points out[3] that they have produced no evidence to substantiate this fear or made any effort to study the situation. More importantly, popularity is not an end in itself. This is especially true for the Mozilla Foundation, a nonprofit with an ethical mission.
[1] https://www.fsf.org/news/fsf-condemns-partnership-between-mo...
[2] https://news.ycombinator.com/item?id=7749108
[3] http://www.theguardian.com/technology/2014/may/14/firefox-cl...
What's the difference?
Currently with DRM there are a variety of plugins to support it in the browser. You have to download Widevine's plugin, or PlayReady's plugin, or whatever. It's just a better user experience if we really do need DRM to have some standardized DRM that the browsers can implement to make it seamless for the user.
Note that I don't support DRM, I think it's a total waste of time because the movies aren't released to the wild by your average Joe who is downloading movies from Amazon. It just serves to hurt the average user. However I think that if we must have DRM, it should at least be something that is easier and works better for the average user.
To answer your question: the difference is that Mozilla is not going out and promoting DRM. They are being pragmatic and reasonable in the less than ideal situation.