Google Chrome

  1. Open Chrome and go to this link:  chrome://settings/content  or follow below steps 
  • Open Chrome.
  • At the top right, click More. Settings.
  • At the left bottom, click Advanced.
  • Under “Privacy and security,” click Content settings.

2. Click Camera or Microphone.

3. Turn Ask before accessing on or off

Firefox

  1. Open Firefoxand go to this link: about:preferences#privacy  or follow below steps 
  • Open Firefox.
  • At the top right, click More. Options.
  • At the left, click Privacy & Security.
  • Under “Privacy and security,” click Content settings.

2. Under Permissions click  Camera or Microphone.

3. Turn Ask before accessing on or off