# UltraBlock - Ultimate AdBlocker > Pro AdBlocker - YouTube no ads, popup blocker, cookie banner blocker, element picker, crypto miner blocker, Twitch/Facebook ads, whitelist, custom filters, tracker protection. Canonical page: [https://chrome-stats.com/d/ultrablock-ultimate-adblocker](https://chrome-stats.com/d/ultrablock-ultimate-adblocker) ## Overview - **ID:** `ultrablock-ultimate-adblocker` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** arena tech - **Category:** privacy-security,appearance - **Daily users:** 6 - **Weekly downloads:** 8 - **Version:** 3.0.0 - **Last updated:** 2026-08-06 - **First published:** 2026-07-31 - **Size:** 84 KB - **Data as of:** 2026-09-12 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ultrablock-ultimate-adblocker/) ## Description UltraBlock Pro - The Ultimate Lightweight AdBlocker for Firefox Tired of unskippable YouTube ads, annoying popups, cookie banners, and sponsored posts? UltraBlock Pro removes them all - instantly. 55KB, 0 trackers, 0 data collection, 100% local blocking. Built for Manifest V2 power that Chrome extensions can never match. β–Ά YOUTUBE - 100% AD-FREE (4-Layer Engine) Other adblockers fail when YouTube updates. We use 4 layers so you never see an ad: Network Block: Cancels youtube.com/api/stats/ads, doubleclick.net, googlesyndication.com before they load API Interception: Intercepts youtubei/v1/player JSON and strips adPlacements[], playerAds[], adBreaks[] - player never sees ads Auto-Skip: 400ms loop detects .ad-showing and seeks video to end + auto-clicks Skip button - no 5 sec wait Cosmetic: Removes ytd-ad-slot-renderer, #masthead-ad, sponsored feed items Result: No pre-roll, mid-roll, post-roll, overlay, banner, in-feed Sponsored, Shorts ads. Video starts instantly. Pro YouTube Extras: Press S to skip sponsor segments (+10s) - SponsorBlock-like Hide YouTube Shorts shelf & sidebar Hide Mixes & auto-playlists Auto HD - forces highest quality Cleans ?si= tracking from shared YouTube links πŸ›‘ BLOCKS EVERYTHING, EVERYWHERE Ads: Google Ads, DoubleClick, Taboola, Outbrain, 100+ networks Video & Audio Ads: SpotX, Teads, FreeWheel, JWPlayer Popups & Popunders: Advanced window.open blocker - only allows popups after real user click (1.5s gesture check). Blocks popads, propellerads, adsterra Banners, Image, Text, Sticky, Floating Ads: 500+ cosmetic filters + MutationObserver Facebook, Instagram, Twitch, TikTok: Hides Sponsored posts, promoted reels, ad overlays Trackers: Google Analytics, Facebook Pixel, Hotjar, Mixpanel, Clarity Crypto Miners: CoinHive, CryptoLoot, CoinImp, WebMinePool Fingerprinting & Canvas Tracking Tracking URLs: Auto-removes utm_source, fbclid, gclid, igshid - you copy clean links πŸͺ COOKIE BANNER AUTO-BLOCKER (NEW) Blocks OneTrust, CookieBot, Usercentrics, Didomi, TrustE, Quantcast (50+ selectors). Auto-clicks "Reject All / Necessary Only" and fixes scroll lock. Popup has "Clear Banners" button. 🎯 ELEMENT PICKER - BLOCK ANYTHING FOREVER (NEW) Annoying newsletter, sticky header, chat widget, or ad that slipped through? Press Ctrl+Shift+E or Right-click β†’ Pick element to block Hover - red overlay shows exact element + selector Click - hidden permanently on that domain forever Manage in Dashboard β†’ Custom Filters 🀍 WHITELIST PER SITE (NEW) Support your favorite creator or site breaks? Click icon β†’ Whitelist Site Right-click β†’ Disable on this site Keyboard Ctrl+Shift+B Manage all whitelisted domains in Dashboard πŸ“Š PRO DASHBOARD & PRIVACY FIRST Options page with stats: Total blocked, Data saved (MB), Time saved, Trackers blocked Tabs: General, YouTube Pro, Whitelist, Custom Filters, Advanced, About Custom filter editor: Add selector@domain like #annoying-popup@news.com Export/Import backup as JSON - share filter sets with friends Context menus + shortcuts: Ctrl+Shift+U/E/B Why UltraBlock is faster & better than uBlock Origin / AdGuard: YouTube API stripping is unique - not just cosmetic hiding Built-in element picker with permanent storage per domain (no extra extension) Cookie banner auto-reject, not just hide URL cleaner - others don't clean tracking params 55KB vs 5MB+ - loads instantly, <1% CPU, pages load 30-50% faster No external filter list download - all built-in, works offline⌨ SHORTCUTS Ctrl+Shift+U: Open popup Ctrl+Shift+B: Toggle current site whitelist Ctrl+Shift+E: Element picker S (on YouTube): Skip 10s sponsor segment πŸ†• What's new in v2.0? Whitelist per site + site status in popup Element picker with visual overlay & permanent storage Cookie banner blocker (50+ patterns) + auto Reject All Tracker, crypto miner, fingerprinting blocker Social ads blocker (FB/IG/Twitch/TikTok) YouTube: Sponsor skip S key, hide Shorts/Mixes, Auto HD, ?si cleaner URL tracker cleaner (utm_, fbclid) Full Dashboard with Export/Import, Custom Filters editor Data saved & time saved stats Install now and experience the clean, fast web you deserve. YouTube starts instantly, news sites without clutter, no popups, no cookie nagging. Support: Open Dashboard β†’ Support or GitHub issues. ## Rankings - #42,109 β€” Overall - #193 β€” adblocker - #237 β€” adblock ## Permissions and access ### Permissions - `` - `webRequest` - `webRequestBlocking` - `storage` - `tabs` - `unlimitedStorage` - `notifications` - `contextMenus` - `webNavigation` ### Content script matches - `` - `*.youtube.com` - `youtube.com` - `*.youtu.be` - `youtu.be` - `*.youtube-nocookie.com` - `*.twitch.tv` - `*.facebook.com` - `*.instagram.com` - `*.tiktok.com` - `*.x.com` - `*.twitter.com` - `*.reddit.com` - `*.linkedin.com` ## Safety - **Risk impact:** Very high risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site. - This extension has low user count. Unpopular extensions may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [ProBlocker - Adblock for YouTube & Web](https://chrome-stats.com/d/problocker-adblock-for-youtube) β€” 391 users, 5.00 / 5 - [ProBlocker - Ad Blocker for YouTube & Web](https://chrome-stats.com/d/problocker-adblocker-for-ytweb) β€” 132 users - [Ad-Free Adblock | Ultimate Ad Blocker](https://chrome-stats.com/d/ad-free-adblock-ultimate-ad-) β€” 6 users - [Ad Blocker Pro - AdWall](https://chrome-stats.com/d/ad-blocker-pro-adwall) β€” 4 users, 5.00 / 5 - [ProBlocker - Ad Blocker for YouTube & Web](https://chrome-stats.com/d/ultimate_free_adblocker) β€” 132 users - [Ultimate Ad Blocker](https://chrome-stats.com/d/ultimate-ad-blocker) β€” 105 users - [Ultimate YouTube Ad Block](https://chrome-stats.com/d/ultimate-youtube-ad-block) β€” 90 users, 5.00 / 5 - [AdBlox - Ad Blocker](https://chrome-stats.com/d/adblox-ad-blocker) β€” 1,564 users, 3.00 / 5 - [YouTubeβ„’ AdBlock](https://chrome-stats.com/d/ytadblock) β€” 23 users, 3.00 / 5 - [AdShield Pro – Skip ads on YouTube adblocker](https://chrome-stats.com/d/adshield-pro-youtubeadblocker) β€” 1 users - [AdShield Pro Advanced Ad Blocker](https://chrome-stats.com/d/adshield-pro-advancedadblocker) β€” 1 users - [YouTube Adblocker](https://chrome-stats.com/d/youtube-adblocker-mv3) β€” 2,048 users, 4.38 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/ultrablock-ultimate-adblocker)