This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
This method is used to get an
Array of identifiers of all the cameras available on the device.
var cameras = navigator.mozCameras.getListOfCameras();
Arrayof identifiers of all cameras available
Not part of any specification; however, this API should be removed when the WebRTC Capture and Stream API has been implemented.