Every Tampermonkey script requires a metadata block ( // ==UserScript== ). This block tells the manager where to run the script, when to execute it, and what permissions it requires. javascript
He smiled. The war wasn't over—the advertisers would come up with new tricks tomorrow—but for tonight, Elias had won. He had the script, he had the full setup, and he had his internet back.
// 3. Dynamic observer for newly added ads (e.g., infinite scroll) const observer = new MutationObserver(mutations => mutations.forEach(mutation => if (mutation.addedNodes.length) // Re-run CSS hiding (new elements with ad classes) // Also run text-based removal for new warning messages removeByText(); adblock script tampermonkey full
After installation:
Choosing the right execution timing is critical. Running a script too early means the target HTML elements do not exist yet; running it too late allows ads to flash on the screen or execute tracking code. The Tampermonkey Metadata Block Every Tampermonkey script requires a metadata block (
In this comprehensive guide, I’ll show you everything you need to know about running a complete ad-blocking system inside Tampermonkey, from installation to finding the best scripts and customizing them for maximum efficiency.
He looked at his standard adblocker. It was tired. It was defeated. It missed things. The websites had evolved; they were detecting his blocker and holding the content hostage behind a "Please disable your adblocker" wall. The war wasn't over—the advertisers would come up
as your primary ad blocker. Use uBlock Origin (desktop) or AdGuard instead. A Tampermonkey adblock script is a fallback for browsers where extensions are limited, or for very specific ad-hiding needs. If you try one, pick a popular, recently updated script on GreasyFork with hundreds of installs and clear code comments.
(function() 'use strict'; // List of blacklisted keywords or domains const adKeywords = [ 'doubleclick.net', 'googleads', 'adservice', 'analytics.js', 'popunder', 'track-analytics' ]; // Helper to check if a URL contains an ad keyword const isAdUrl = (url) => if (!url) return false; return adKeywords.some(keyword => url.includes(keyword)); ; // 1. Intercept Fetch API const originalFetch = window.fetch; window.fetch = async function(...args) const url = args[0]; if (typeof url === 'string' && isAdUrl(url)) console.log(`[AdBlock] Blocked fetch request to: $url`); return new Response('', status: 404, statusText: 'Not Found' ); return originalFetch.apply(this, args); ; // 2. Intercept XMLHttpRequest (XHR) const originalOpen = XMLHttpRequest.prototype.open; XMLHttpRequest.prototype.open = function(method, url, ...args) if (typeof url === 'string' && isAdUrl(url)) console.log(`[AdBlock] Blocked XHR request to: $url`); // Overwrite send to prevent execution this.send = function() this.readyState = 4; this.status = 404; ; return originalOpen.apply(this, [method, url, ...args]); ; )(); Use code with caution. Strategy 2: Dynamic DOM Purging via MutationObserver
Specifically designed to disable "Please turn off your adblocker" pop-ups.
You likely have a poorly optimized script. Uninstall it and install the "AdBlock - Full version" with the smallest code footprint. Alternatively, add @run-at document-start to the script header so it runs before ads load, preventing repaints.