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Firefox cannot find my web camera; works in other browsers

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I am trying to take a photo with my website in FireFox. I have the latest FF 65.0.1 64-bit Quantum browser, but it cannot find my integrated web camera. The web camera works in Chrome, IE, & Edge, but it cannot find it at all in Firefox. I do not get prompted to use the camera. I have no plugins installed.

The error I get - MediaStreamError { name: "NotFoundError", message: "The object can not be found here.", constraint: "", stack: "" }

I am using navigator.mediaDevices.getUserMedia({video: true}).then(function(stream) {video.srcObject = stream; });

If I test my camera on other sites with FF, the same problem occurs not being able to find the camera (not a problem with my code at least). So there's something wrong with FF, either a bug or settings conflict that I can't figure out. I have cleared cache and restarted the browser/computer several times and it is still not working.