Scroll up/down when using home/end/up/down arrow/page up/page down instead of controlling the volume.
// ==UserScript==
// @name Youtube: UpDown to Scroll
// @description Scroll up/down when using home/end/up/down arrow/page up/page down instead of controlling the volume.
// @author Chris H (Zren)
// @icon https://youtube.com/favicon.ico
// @namespace http://xshade.ca
// @version 5
// @include http*://*.youtube.com/*
// @include http*://youtube.com/*
// @include http*://*.youtu.be/*
// @include http*://youtu.be/*
// ==/UserScript==
window.addEventListener('keydown', function(e) {
var validTarget = e.target.id === 'movie_player' || e.target.id === 'player-api' || e.target.className === 'ytp-progress-bar'
if (validTarget) {
if (e.keyCode === 33) { // PageUp
e.stopPropagation()
} else if (e.keyCode === 34) { // PageDown
e.stopPropagation()
} else if (e.keyCode === 35) { // End
e.stopPropagation()
} else if (e.keyCode === 36) { // Home
e.stopPropagation()
} else if (e.keyCode === 38) { // ArrowUp
e.stopPropagation()
} else if (e.keyCode === 40) { // ArrowDown
e.stopPropagation()
}
}
}, true);