Youtube Adblock v4
// ==UserScript==
// @name Youtube-Adblock v4
// @namespace http://tampermonkey.net/
// @version 2025-09-21
// @description Youtube Adblock v4
// @author Anton
// @match *://*.youtube.com/*
// @exclude *://accounts.youtube.com/*
// @exclude *://www.youtube.com/live_chat_replay*
// @exclude *://www.youtube.com/persist_identity*
// @icon https://www.google.com/s2/favicons?sz=64&domain=YouTube.com
// @grant none
// @license MIT
// ==/UserScript==
// Array of CSS selectors for different types of YouTube ads to block
var cssArrObject = [
`#masthead-ad`, // Top banner ads
`ytd-rich-item-renderer.style-scope.ytd-rich-grid-row #content:has(.ytd-display-ad-renderer)`, // Rich grid display ads
`.video-ads.ytp-ad-module`, // Video overlay ads
`tp-yt-paper-dialog:has(yt-mealbar-promo-renderer)`, // Mealbar promo dialogs
`ytd-engagement-panel-section-list-renderer[target-id="engagement-panel-ads"]`, // Engagement panel ads
`#related #player-ads`, // Related video ads
`#related ytd-ad-slot-renderer`, // Related ad slots
`ytd-ad-slot-renderer`, // General ad slot renderers
`yt-mealbar-promo-renderer`, // Mealbar promo renderers
`ytd-popup-container:has(a[href="/premium"])`, // Premium subscription popups
`ad-slot-renderer`, // Generic ad slot renderers
`ytm-companion-ad-renderer`, // Companion ads (mobile)
`#related #-ad-`, // Related section ads
];
(function() {
'use strict'; // Enable strict mode for better error handling
window.dev = false; // Development mode flag (currently disabled)
function removeNonVideoAds(arry) {
// Convert each selector to a CSS rule that hides the element
arry.forEach((selector, index) => {
arry[index] = `${selector}{display:none!important}`; // Force hide with !important
});
// Find and remove YouTube Premium subscription popup containers
const premiumContainers = [...document.querySelectorAll(`ytd-popup-container`)];
const matchingContainers = premiumContainers.filter(container =>
container.querySelector(`a[href="/premium"]`) // Look for premium subscription links
);
// Remove all premium popup containers if found
if (matchingContainers.length > 0) {
matchingContainers.forEach(container => container.remove());
}
// Handle overlay backdrops that might block interaction
const backdrops = document.querySelectorAll(`tp-yt-iron-overlay-backdrop`);
const targetBackdrop = Array.from(backdrops).find(
(backdrop) => backdrop.style.zIndex === `2201` // Specific z-index for premium overlays
);
// Remove the target backdrop if found
if (targetBackdrop) {
targetBackdrop.className = ``; // Clear CSS classes
targetBackdrop.removeAttribute(`opened`); // Remove opened attribute
}
// Create and inject CSS style element to hide ads
let style = document.createElement(`style`);
(document.head || document.body).appendChild(style); // Add to document head or body
style.appendChild(document.createTextNode(arry.join(` `))); // Join all CSS rules with spaces
}
/**
* Skips video ads by fast-forwarding to the end
* @param {HTMLVideoElement} video - The video element showing the ad
*/
function skipAd(video) {
// Look for various ad skip button indicators
const adIndicator = document.querySelector(
'.ytp-ad-skip-button, .ytp-skip-ad-button, .ytp-ad-skip-button-modern, ' +
'.video-ads.ytp-ad-module .ytp-ad-player-overlay, .ytp-ad-button-icon'
);
// Only skip ads if indicator is found and not on mobile YouTube
if (adIndicator && !window.location.href.includes('https://m.youtube.com/')) {
video.muted = true; // Mute the ad video
video.currentTime = video.duration - 0.1; // Jump to near the end (0.1 seconds before finish)
}
}
function removeAdblockWarning() {
// Check for adblock warning every random interval (0-0.5 seconds)
var warningInterval = setInterval(function() {
// Check for adblock warning popup elements
var popupExists = document.getElementsByClassName("style-scope ytd-popup-container").length > 0;
var dismissButton = document.getElementById("dismiss-button"); // Dismiss button in popup
var divider = document.getElementById("divider"); // Divider element in popup
// If all warning elements are present, handle the popup
if (popupExists && dismissButton && divider) {
// Wait random time (0-3 seconds) before closing to avoid detection
setTimeout(function() {
dismissButton.click(); // Click dismiss button to close warning
document.getElementsByClassName("ytp-play-button ytp-button")[0].click(); // Resume video playback
console.log("banner closed"); // Log successful closure
clearInterval(warningInterval); // Stop monitoring since warning is closed
}, Math.random() * 3); // Random delay between 0-3 seconds
}
}, Math.random() * 0.5); // Random interval between 0-0.5 seconds
}
// Main execution loop - runs every 500ms to continuously monitor and block ads
setInterval(() => {
// Only run when page is fully loaded
if (document.readyState !== 'loading') {
// Save current URL to localStorage when leaving page (for potential resume functionality)
window.addEventListener('beforeunload', () => {
window.localStorage.setItem('lastUrl', window.location.href);
}, { once: true }); // Only add listener once
// Remove all non-video ads using CSS injection
removeNonVideoAds(cssArrObject);
// Monitor and remove adblock warning popups
removeAdblockWarning();
// Get video elements for ad skipping and player status monitoring
var adsVideo = document.querySelector('.ad-showing video'); // Video element showing ads
var mainVideo = document.querySelector('video'); // Main video player element
// Monitor main video player status and handle auto-play functionality
if(mainVideo) {
// Get current player status information
var playerStatus = {
currentTime: mainVideo.currentTime, // Current playback position in seconds
isPaused: mainVideo.paused, // Whether video is paused (true/false)
speed: mainVideo.playbackRate // Current playback speed (1.0 = normal)
};
// Uncomment the line below to log player status to console for debugging
// console.log('YouTube Player Status:', playerStatus);
// Auto-play video if it's paused and at the beginning (5 seconds or less)
if(playerStatus.currentTime <= 5 && playerStatus.isPaused == true){
mainVideo.play().catch(error => {
console.error('Failed to play video:', error); // Log play errors
});
}
}
// Skip any video ads that are currently playing
skipAd(adsVideo);
}
}, 500); // Run every 500ms for real-time ad blocking
})();