Choose the default resolution for YouTube videos!
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// ==UserScript==
// @name Default Resolution - YouTube
// @namespace https://greasyfork.org/en/users/670188-hacker09?sort=daily_installs
// @version 2
// @description Choose the default resolution for YouTube videos!
// @author hacker09
// @match https://m.youtube.com/watch?v=*
// @match https://www.youtube.com/embed/*
// @match https://www.youtube.com/watch?v=*
// @icon https://www.youtube.com/s/desktop/03f86491/img/favicon.ico
// @run-at document-end
// @grant GM_getValue
// @grant GM_setValue
// ==/UserScript==
setTimeout(() => {
'use strict';
if (GM_getValue('Default_Desktop_Resolution') === undefined) //If the Default_Resolution wasn't set yet
{ //Starts the if condition
GM_setValue('Default_Desktop_Resolution', 'hd1080'); //Save the Default YT Desktop Resolution as 1080p
GM_setValue('Default_Mobile_Resolution', 'tiny'); //Save the Default YT Mobile Resolution as 144p
} //Finishes the if condition
document.querySelector(".html5-main-video").addEventListener("play", (ev) => {
ev.target.closest('#movie_player').setPlaybackQualityRange((navigator.userAgentData.mobile === true) ? GM_getValue('Default_Mobile_Resolution') : (ev.target.closest('#movie_player').getAvailableQualityLevels().includes(GM_getValue('Default_Desktop_Resolution')) === true) ? GM_getValue('Default_Desktop_Resolution') : ev.target.closest('#movie_player').getAvailableQualityLevels()[0]); //If the user is on mobile, use the default mobile resolution, otherwise if the default desktop resolution exists use it, or if it doesn't exist then use the highest resolution available
}, { once: true });
}, 800);