About this Add-on
Of course, leaving this setting on is insecure, since any web site that's open will be able to get access to your microphone, camera, and screen! So be sure to only turn it on when you need to use WebRTC, and turn it off once you're done with it.
NOTE: your first camera/screen/etc. will be chosen automatically. If you need to select a particular camera, mic, screen, or window to share, you'll have to use another web browser (like Firefox.)