I'm curious as to why anyone would want this? I guess if you consider the new DRM integration a potential attack vector it removes that possibility. But, if you're going to install this in the first place you won't be consuming DRM content - so you probably won't even be visiting the sites that have it anyway and using the feature.
https://news.ycombinator.com/item?id=9532417
I'm having trouble writing a summary that avoids sarcasm.