On youtube when you press right click on a video tile on homepage it shows too many right click options like play,pause,mute,fullscreen,playback speed etc. They take up too much unnecessary space and the only way to disable them is to use a custom css file! Please add support to disable some right click elements by default on firefox without having to use css file! Chromium based browsers don't have this problem at all! Learn from them! Their right click ui looks more compact and clean even with same addons installed! These buttons are also not there on chromium browsers!