Here's how you can change camera, microphone, and notification permissions for Snapchat for Web:

Chrome

1. In the address bar, click the lock icon
2. Toggle on Camera, Microphone, and/or Notifications
3. Refresh the page

If you don’t see the toggles, click 'Site settings' and then enable the toggles for notifications, camera, and microphone.

Edge

1. In the address bar, click the lock icon 
2. Toggle on Camera, Microphone, and/or Notifications
3. Refresh the page

If you don’t see the toggles, click 'Permissions for this site' and then enable the toggles for notifications, camera, and microphone.