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Firefox/Windows10/PC - Can't grant camera/mic permission > facebook.com - Tried all known permission dialogs

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Hi all, Camera/mic work (Logitech HD Pro C920 camera) and are plugged in.

Running Windows 10 on a PC/Ryzen 2500 processor.

I've located all the "Permissions" dialogs I can find.

  1. Permissions for cam/mic  are set to "Use Default" - Facebook error "please allow access (cam + mic)
  2. Permissions for cam/mic are set to "Allow" - same error
  3. Permissions for cam/mic are set to "Ask me every time" - then "Use Default" box is automatically checked.

Firefox is updated (as of today) as is Windows 10.

Does Facebook.com have controls contained within the app under "settings" or something?

Thanks so much for any help.

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