macOS Mojave and later released a security setting that requires you to grant the operating system camera and microphone permissions, under System Preferences.

IMPORTANT: You must grant each browser camera/mic access.

Give camera and mic access

  1. Go to System Preferences > Security & Privacy > Camera. 

  2. Click the box next to the browser you're using. It'll quit and reopen your browser.  

  3. Do the same for Systems Preferences > Privacy > Microphone.

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