Turn off/disable YouTube autoplay feature

disable_youtube_autoplay.js

// To run, install GreaseMonkey or TamperMonkey extension in your browser
// Copy this code into new user script, and enable

// ==UserScript==
// @name         Disable Youtube autoplay
// @version      1.0
// @description  This script turns off Youtube's newest autoplay feature after the page loads
// @author       Jeff Bellucci
// @match        *://www.youtube.com/*
// @run-at       document-start
// @grant        none
// ==/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();
})();

@JohnyP36 You need to use a script running extension. Personally, I prefer Tampermonkey, but there are a number of options out there that let you save different scripts and run them as you see fit, on a single website, on all websites, on document ready, etc, etc. They are quite powerful.

I have forked and modded this userscript due to youtube breaking stuff (You refresh the page, autoplay goes back on even if you turn it off). The autoplay got moved into html5 player, and the only way I can do it is with JQuery. My version would not allow autoplay to be turned on, it'll turn off again because of youtube bug above.

So, is there still a workable JS script as of the present?

@scrutinizer11 this one works for me https://gist.githubusercontent.com/sidneys/02a9025ae1f23aefe1f4ea02e78b0ac8/