Wow, the bitching is strong with this thread.
It's an open web standard. Firefox added support for a new open standard. That is what you are complaining about. Chrome already had support for it, but Mozzy have apparently completely ruined their browser by adding support for a feature no-one is forcing you to use.
For those of us that do want video conferencing without vendor lock-in (that's quite a lot of us, chum), this is great to finally see arrive, and I've been waiting on it. Thank you Moz, for continuing to properly support modern open web standards.