It can be fixed for general cases (like advertisers or drive-by-exploits): make WebRTC click-to-play. This also fixes the issue where any random site can use W

It can be fixed for general cases (like advertisers or drive-by-exploits): make WebRTC click-to-play. This also fixes the issue where any random site can use WebRTC to make your computer distribute peer to peer content of its choice (like bittorrent).