Firefox in its default configuration does provide real device info before getUserMedia access is first granted, minus labels. I believe this is to spec. While those deviceIds are not persistent *at that moment*, they're immediately usable in getUserMedia constraints and *become* persistent *if* the user grants getUserMedia in that session. If the user doesn't grant anything, the ids expire at the end of the session. > WebKit [...] enumerateDevices will provide default configurations for a given device, typically a microphone and a camera for a laptop. Firefox can be configured with [privacy.resistFingerprinting=true](https://wiki.mozilla.org/Security/Fingerprinting) that does this, but persistently and it also ignores constraints. -- GitHub Notification of comment by jan-ivar Please view or discuss this issue at https://github.com/w3c/mediacapture-main/issues/541#issuecomment-424702558 using your GitHub accountReceived on Wednesday, 26 September 2018 12:48:58 UTC
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