Forefoc ESR not requesting camera permission

I'm using a Chromebook and downloaded Firefox ESR in an effort to get doxy.me (a telemedicine video site) to work. I cannot get the camera to work because Firefox won't send a request asking for permission for my camera. So when I go into firefox setting, it looks like no sites have requested access to my camera. I checked my chromebook settings and allowed firefox access to the camera, but I can't figure out why it won't find my camera or request permission to use it. The microphone requested permission and is working fine.