automute youtube on video ads

automute_youtube_on_video_ads.tampermonkey.user.js

// ==UserScript==
// @name         automute youtube on video ads
// @namespace    http://tampermonkey.net/
// @description  try to take over the world!
// @author       You
// @match        https://www.youtube.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const getMuteButton = () => document.querySelector("#movie_player > div.ytp-chrome-bottom > div.ytp-chrome-controls > div.ytp-left-controls > span > button").click()

    const hasVideoAds = () => Boolean(document.querySelector("#ad-avatar-lockup-card\\:z"))

    const isMuted = () => {
        return getMuteButton().title.toLowerCase().includes('reativar')
    }

    const mute = () => !isMuted() && getMuteButton().click()
    const unmute = () => isMuted && getMuteButton().click()

    function main () {
        if (hasVideoAds()) {
            mute()
        } else {
            unmute()
        }
    }

    setInterval(main, 250)
})();