This script was based on YouTube Web Tweaks lite but converted into ultimate package (which includes both Action Buttons Fix and other stuff from the force rounded corners scripts)
// ==UserScript==
// @name YouTube Web Tweaks ultimate edition
// @version 2025.08.30
// @description This script was based on YouTube Web Tweaks lite but converted into ultimate package (which includes both Action Buttons Fix and other stuff from the force rounded corners scripts)
// @author Joey_JTS
// @license MIT
// @match *://www.youtube.com/*
// @match *://www.youtube-nocookie.com/*
// @match *://www.youtu.be/*
// @namespace https://greasyfork.org/en/users/761382
// @icon https://www.youtube.com/favicon.ico
// @unwrap
// @run-at document-end
// @unwrap
// @grant none
// ==/UserScript==
// Enable strict mode to catch common coding mistakes
"use strict";
// Define the flags to assign to the EXPERIMENT_FLAGS object
const flagsToAssign = {
// Standard tweaks (YT config editor + Disable animations)
IS_TABLET: true,
DISABLE_YT_IMG_DELAY_LOADING: true,
polymer_verifiy_app_state: false,
desktop_delay_player_resizing: false,
web_animated_actions: false,
web_animated_like: false,
web_animated_like_lazy_load: false,
render_unicode_emojis_as_small_images: true,
smartimation_background: false,
kevlar_refresh_on_theme_change: false,
// Disable cinematics (aka ambient lighting)
kevlar_measure_ambient_mode_idle: false,
kevlar_watch_cinematics_invisible: false,
web_cinematic_theater_mode: false,
web_cinematic_fullscreen: false,
enable_cinematic_blur_desktop_loading: false,
kevlar_watch_cinematics: false,
web_cinematic_masthead: false,
web_watch_cinematics_preferred_reduced_motion_default_disabled: false
};
const updateFlags = () => {
// Check if the EXPERIMENT_FLAGS object exists in the window.yt.config_ property chain
const expFlags = window?.yt?.config_?.EXPERIMENT_FLAGS;
// If EXPERIMENT_FLAGS is not found, exit the function
if (!expFlags) return;
// Assign the defined flags to the EXPERIMENT_FLAGS object
Object.assign(expFlags, flagsToAssign);
};
// Create a MutationObserver that calls the updateFlags function when changes occur in the document's subtree
const mutationObserver = new MutationObserver(updateFlags);
mutationObserver.observe(document, { subtree: true, childList: true });
(function() {
let css = `
/* Remove all annoyances (including 'shorts' section) */
ytd-merch-shelf-renderer,
ytd-action-companion-ad-renderer,
ytd-display-ad-renderer,
ytd-video-masthead-ad-advertiser-info-renderer,
ytd-video-masthead-ad-primary-video-renderer,
ytd-in-feed-ad-layout-renderer,
ytd-ad-slot-renderer,
ytd-statement-banner-renderer,
ytd-banner-promo-renderer-background,
ytd-ad-slot-renderer,
ytd-in-feed-ad-layout-renderer,
.ytwPanelAdHeaderImageLockupViewModelHost,
ytd-ads-engagement-panel-content-renderer,
#content.ytd-ads-engagement-panel-content-renderer,
ytd-engagement-panel-section-list-renderer[target-id="engagement-panel-ads"],
ytd-rich-item-renderer:has(> #content > ytd-ad-slot-renderer),
.ytd-video-masthead-ad-v3-renderer,
div#root.style-scope.ytd-display-ad-renderer.yt-simple-endpoint,
div#sparkles-container.style-scope.ytd-promoted-sparkles-web-renderer,
div#main-container.style-scope.ytd-promoted-video-renderer,
div#player-ads.style-scope.ytd-watch-flexy,
#clarify-box,
yt-about-this-ad-renderer,
masthead-ad,
ad-slot-renderer,
yt-mealbar-promo-renderer,
statement-banner-style-type-compact,
ytm-promoted-sparkles-web-renderer,
tp-yt-iron-overlay-backdrop,
#masthead-ad,
#expandable-metadata,
.ytGridShelfViewModelHost,
.ytd-search ytd-shelf-renderer,
ytd-reel-shelf-renderer,
ytd-rich-section-renderer {
display: none !important
}
.style-scope[page-subtype='channels'] ytd-shelf-renderer,
.style-scope[page-subtype='channels'] ytm-shelf-renderer {
display: block !important
}
/* Watch page tweaks (including CSS for 'action buttons fix') */
#comment-teaser,
teaser-carousel {
display: none !important
}
ytd-horizontal-card-list-renderer[modern-chapters][card-list-style=HORIZONTAL_CARD_LIST_STYLE_TYPE_ENGAGEMENT_PANEL_SECTION],
ytd-video-description-infocards-section-renderer.style-scope.ytd-structured-description-content-renderer > #header.ytd-video-description-infocards-section-renderer,
ytd-video-description-infocards-section-renderer.style-scope.ytd-structured-description-content-renderer > #action-buttons.ytd-video-description-infocards-section-renderer,
#social-links.ytd-video-description-infocards-section-renderer {
display: none !important
}
ytd-video-description-infocards-section-renderer.style-scope.ytd-structured-description-content-renderer {
border-top: 0 !important
}
#paid-comment-images,
#paid-comment-chip > .yt-pdg-comment-chip-renderer.style-scope,
#paid-comment-background {
display: none !important
}
#actions.ytd-watch-metadata {
min-width: auto !important
}
yt-button-view-model.ytd-menu-renderer .yt-spec-button-shape-next--size-m, ytd-download-button-renderer .yt-spec-button-shape-next--size-m, .yt-spec-button-shape-next--size-m[aria-label="Promote"], #loop-button > .yt-spec-button-shape-next--size-m {
margin-left: 8px !important
}
#flexible-item-buttons .ytd-menu-renderer, #top-level-buttons-computed yt-button-view-model.ytd-menu-renderer, ytd-button-renderer#loop-button {
margin-left: 0 !important
}
.yt-spec-button-shape-next--size-m[aria-label="Promote"],
#flexible-item-buttons [aria-label="Promote"] {
display: none !important
}
.yt-spec-button-shape-next--size-m[aria-label="Ask"],
#flexible-item-buttons [aria-label="Ask"] {
display: none !important
}
ytd-watch-metadata.ytd-watch-flexy {
padding-bottom: 36px !important
}
.html5-endscreen.ytp-player-content.videowall-endscreen.ytp-show-tiles {
display: none !important
}
#related ytd-compact-video-renderer, ytd-compact-movie-renderer, #related ytd-compact-playlist-renderer, #related ytd-compact-radio-renderer, #related yt-lockup-view-model, #related ytd-channel-renderer, ytd-watch-flexy ytd-reel-shelf-renderer, ytd-watch-flexy ytd-rich-section-renderer, #related ytd-continuation-item-renderer, #related #continuations {
display: none !important
}
#related yt-lockup-view-model:nth-of-type(1), #related yt-lockup-view-model:nth-of-type(2), #related yt-lockup-view-model:nth-of-type(3), #related yt-lockup-view-model:nth-of-type(4), #related yt-lockup-view-model:nth-of-type(5), #related yt-lockup-view-model:nth-of-type(6), #secondary #related yt-lockup-view-model:nth-of-type(7), #secondary #related yt-lockup-view-model:nth-of-type(8), #secondary #related yt-lockup-view-model:nth-of-type(9) {
display: flex !important
}
/* More tweaks */
#channel-header-links.style-scope.ytd-c4-tabbed-header-renderer,
.page-header-view-model-wiz__page-header-attribution,
.yt-page-header-view-model__page-header-attribution {
display: none !important
}
#chip-bar.style-scope.ytd-search-header-renderer,
[page-subtype="playlist"] ytd-feed-filter-chip-bar-renderer {
display: none !important
}
ytd-search-header-renderer .yt-spec-button-shape-next--size-m {
flex-direction: row-reverse
}
ytd-search-header-renderer .yt-spec-button-shape-next--size-m.yt-spec-button-shape-next--icon-trailing .yt-spec-button-shape-next__icon {
margin-left: -6px;
margin-right: 6px
}
[is-search] ytd-shelf-renderer.ytd-item-section-renderer:not(ytd-channel-renderer + ytd-shelf-renderer),
[is-search] ytd-horizontal-card-list-renderer.ytd-item-section-renderer:not(:first-child),
[is-search] ytd-exploratory-results-renderer.ytd-item-section-renderer {
display: none !important
}
ytd-guide-entry-renderer > a[href*="/channel/UCtFRv9O2AHqOZjjynzrv-xg"],
ytd-guide-entry-renderer > a[href*="/feed/courses_destination"],
ytd-guide-entry-renderer > a[href*="/channel/UCrpQ4p1Ql_hG8rKXIKM1MOQ"],
ytd-guide-entry-renderer > a[href*="/channel/UCkYQyvc_i9hXEo4xic9Hh2g"],
ytd-guide-entry-renderer > a[href*="/podcasts"],
ytd-guide-entry-renderer > a[href*="/feed/podcasts"] {
display: none !important
}
ytd-download-button-renderer,
ytd-guide-entry-renderer > a[href*="/feed/downloads"],
ytd-mini-guide-entry-renderer > a[href*="/feed/downloads"] {
display: none !important
}
#footer.style-scope.ytd-guide-renderer {
display: none !important
}`;
if (typeof GM_addStyle !== "undefined") {
GM_addStyle(css);
} else {
let styleNode = document.createElement("style");
styleNode.appendChild(document.createTextNode(css));
(document.querySelector("head") || document.documentElement).appendChild(styleNode);
}
})();
// Force h264-only codec and disables WebGL script codes
var mse = window.MediaSource;
if (mse){
// Set up replacement for MediaSource type support function
var nativeITS = mse.isTypeSupported.bind(mse);
mse.isTypeSupported = ourITS(nativeITS);
}
// Here's the replacement
function ourITS(fallback){
// type is a string (hopefully!) sent by the page
return function (type) {
if (type === undefined) return '';
// We only reject VP9
if (type.toLowerCase().indexOf('vp9') > -1) return '';
if (type.toLowerCase().indexOf('vp09') > -1) return ''; // Added 12/20/2019
// Let Firefox handle everything else
return fallback(type);
};
}
//
// What is this userscript trying to address?
// When playing a video, only a small part of the video loads, and the subsequent
// parts do not load afterward.
(function () {
"use strict";
const originalGetContext = HTMLCanvasElement.prototype.getContext;
HTMLCanvasElement.prototype.getContext = function (contextType) {
if (contextType === "webgl" || contextType === "webgl2") {
console.log("WebGL is disabled by Tampermonkey");
return null;
}
return originalGetContext.apply(this, arguments);
};
})();
/* Add action buttons fix code */
const abtnconfig = {
unsegmentLikeButton: false,
noFlexibleItems: true
};
function updateBtns() {
var watchFlexy = document.querySelector("ytd-watch-flexy");
var results = watchFlexy.data.contents.twoColumnWatchNextResults.results.results.contents;
for (var i = 0; i < results.length; i++) {
if (results[i].videoPrimaryInfoRenderer) {
var actions = results[i].videoPrimaryInfoRenderer.videoActions.menuRenderer;
if (abtnconfig.unsegmentLikeButton) {
if (actions.topLevelButtons[0].segmentedLikeDislikeButtonRenderer) {
var segmented = actions.topLevelButtons[0].segmentedLikeDislikeButtonRenderer;
actions.topLevelButtons.splice(0, 1);
actions.topLevelButtons.unshift(segmented.dislikeButton);
actions.topLevelButtons.unshift(segmented.likeButton);
}
}
if (abtnconfig.noFlexibleItems) {
for (var i = 0; i < actions.flexibleItems.length; i++) {
actions.topLevelButtons.push(actions.flexibleItems[i].menuFlexibleItemRenderer.topLevelButton);
}
delete actions.flexibleItems
}
}
}
var temp = watchFlexy.data;
watchFlexy.data = {};
watchFlexy.data = temp;
}
document.addEventListener("yt-page-data-updated", (e) => {
if (e.detail.pageType == "watch") {
updateBtns();
}
});