For real. I understand the security argument, but that poster and Mozilla in general seem to be making the argument that "no, you're wrong, you don't know what you want, we're going to tell you what you want, and it's a less feature-rich Firefox."

Well, I use Firefox, and I evangelize Firefox to everyone I know, on the basis, essentially of the extensions, and most of the popular Firefox extensions would have never come into existence with the new extension model. Mozilla is developing APIs to grandfather some of them in, but they're still reducing the possibility space from "anything" to "what we expose through these APIs", so new extensions that change everything will no longer come into being.

And aside from that, they don't even cover everything; I've already been notified by the developers of two extensions I use that they either can't or won't be switching over.

I really do have to agree with the people who are saying Mozilla has totally lost the plot. I've disabled automatic updates until I can figure out what I'm going to do.