Can't access camera and mic settings on Firefox

Hey guyz need help regarding the issue…

I m unable to use camera and mic on Firefox on Mac OS . I have check the permission of both system and browsers . Tried Clearing cache and history. Tried resetting the browser but didn’t worked either. Tried uninstalling and installing the browser again but it doesn’t matter either. Atlast I created a new user and tried their but it didn’t worked their either… Just expecting a productive reply with a solution here.

The best place to get a productive reply with a solution is and not a forum about add-on development.

Tools - Settings
On the left side click on Privacy & Security
Scroll down the page and you will see Camera & Microphone permissions

As you are on MacOS you must also go into the apple system preferences then into the privacy settings and add Firefox to camera & microphone access.