// To run, install GreaseMonkey or TamperMonkey extension in your browser
// Copy this code into new user script, and enable
// ==UserScript==
// @name         Disable Youtube next video autoplay
// @version      1.4
// @description  This script prevents Youtube from autoplaying the next video by switching the autoplay toggle to "off"
// @author       Jeff Bellucci
// @match        *://www.youtube.com/*
// @run-at       document-start
// @grant        none
// @namespace http://tampermonkey.net/
// ==/UserScript==
(function() {
'use strict';
function uncheck(toggle) {
if (toggle.hasAttribute("checked")) {
toggle.click();
}
}
function disableAfterLoad() {
var autoplayToggle = document.getElementById('toggle');
if (autoplayToggle) {
uncheck(autoplayToggle);
} else {
setTimeout(disableAfterLoad, 500);
}
}
disableAfterLoad();
})();