AdOff Firefox

AdOff

Block ads on YouTube & every website. Skip video ads, ultra-light, invisible to anti-adblock. Fast, private, no tracking.

Features & Capabilities

Ads? Off!

AdOff is a next-generation ad blocker built from scratch with Manifest V3. It blocks ads everywhere — instantly, invisibly, and without slowing down your browser.

━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS ━━━━━━━━━━━━━━━━━━━━

AdOff uses four independent layers of protection that work together:

● Network Blocking — Intercepts and blocks ad requests before they even reach your browser. 138 rules cover all major advertising networks, tracking pixels, and analytics endpoints. Ads are stopped at the source, saving bandwidth and speeding up page loads.

● Cosmetic Filtering — Hides ad containers, banners, sponsored content, pop-ups, cookie walls, and residual ad elements directly from the page. Uses precise CSS selectors and smart DOM scanning to remove visual clutter without breaking page layouts.

● Video Ad Neutralization (Pro) — Replaces the standard video ad SDK with a neutral stub that tells the player "no ads to show." Videos start immediately without pre-roll or mid-roll interruptions. Works universally on video platforms like YouTube and Twitch, and on any streaming or broadcaster website worldwide.

● Stealth Anti-Detection (Pro) — Advanced anti-adblock evasion technology. AdOff stays completely invisible to detection scripts, so you never see "please disable your ad blocker" messages. Works on news sites, video platforms like YouTube, social networks like Facebook, and any site that fights ad blockers.

━━━━━━━━━━━━━━━━━━━━ KEY FEATURES ━━━━━━━━━━━━━━━━━━━━

✔ Works on every website — zero configuration needed ✔ Ultra-lightweight: only tens of KB, a fraction of typical competitors ✔ Video ad neutralization (Pro only) — eliminates pre-roll and mid-roll ads on YouTube, Twitch, Vimeo, Dailymotion and streaming platforms worldwide ✔ Stealth mode (Pro only): invisible to anti-adblock detection systems ✔ Per-site controls: pause protection on specific sites with one click ✔ 4 pause modes: pause for 1 hour, until tomorrow, permanently, or custom ✔ Whitelist management: easily exclude trusted sites you want to support ✔ Real-time stats: see how many ads and requests have been blocked ✔ Cookie banner blocker: auto-dismisses cookie consent pop-ups ✔ No "acceptable ads": blocks everything by default — no paid whitelist, ever ✔ Transparent pricing: cancel anytime, 30-day money-back guarantee, no hidden auto-renewal ✔ Privacy-first: no browsing history collected, no page content read, no tracking data sent ✔ 15 languages: English, Italian, German, French, Spanish, Portuguese, Russian, Arabic, Chinese, Hindi, Japanese, Korean, Turkish, Indonesian, Polish ✔ Manifest V3: built with the latest Chrome extension architecture ✔ Free tier available — core protection at no cost

━━━━━━━━━━━━━━━━━━━━ WORKS EVERYWHERE ━━━━━━━━━━━━━━━━━━━━

AdOff blocks ads on every website you visit. A few of the places where it shines:

● Video & streaming — YouTube, Twitch, Vimeo, Dailymotion, Hulu, and any player worldwide: pre-roll, mid-roll and overlay video ads neutralized instantly (Pro).

● Social networks — Facebook, Instagram, X (Twitter), TikTok, Reddit, LinkedIn, Pinterest, Snapchat: sponsored posts, in-feed ads and promoted content hidden.

● Search & shopping — Google, Bing, Amazon, eBay: sponsored results and product ads removed.

● News & media — every news site, blog, and magazine: banners, pop-ups, interstitials and anti-adblock walls bypassed (Stealth, Pro).

● Forums, wikis, streaming audio (Spotify Web), webmail, and the entire rest of the web — if a page tries to show you an ad, AdOff stops it.

━━━━━━━━━━━━━━━━━━━━ FREE vs PRO ━━━━━━━━━━━━━━━━━━━━

Free — Full network ad blocking, CSS ad hiding, per-site pause, whitelist, multi-language support.

Pro — Everything in Free, plus: Video ad neutralization (eliminates pre-roll and mid-roll ads on streaming platforms), Stealth anti-detection mode, priority updates, and early access to new features. Start with a 30-day free trial.

━━━━━━━━━━━━━━━━━━━━ WHY ADOFF? ━━━━━━━━━━━━━━━━━━━━

Most ad blockers share the same five weaknesses. AdOff was built to fix every one of them:

→ Video ads slip through or force a page reload? AdOff neutralizes video ads instantly, in-page, on any streaming platform or broadcaster worldwide — no reload needed, nothing slips through. → "Acceptable ads" letting paid ads through by default? Never. AdOff blocks everything by default. No paid whitelist, no ads we quietly let through — ever. → Cluttered, overwhelming settings? Zero configuration. AdOff works the second you install it — no modes to switch, no filter lists to tune. → Bloated blockers that eat RAM and slow your browser? AdOff is ultra-light and uses Chrome's native declarativeNetRequest engine — no background overhead, no slowdown. → Predatory billing and impossible refunds? Transparent pricing, cancel anytime, 30-day money-back guarantee. No hidden auto-renewal traps.

On top of all that:

→ Undetectable: stealth technology bypasses even the most aggressive anti-adblock walls → No monetization of your data: we don't track you, sell your data, or inject our own ads → Open and transparent: clear permissions, clear privacy policy

━━━━━━━━━━━━━━━━━━━━ SUPPORT ━━━━━━━━━━━━━━━━━━━━

Need help? Visit our support page at adoff.app/support — we respond to every message.

Found a site where ads aren't blocked? Let us know and we'll add rules for it in the next update.

User Growth & Download Statistics

Manifest V3 Add-on
By:
AdOff Team
Daily users:
11 2
Version:
3.5.35 Last updated: 2026-07-19
Version code:
6355175
Creation date:
2026-04-19
Risk:
Moderate risk impact High risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • <all_urls>
Size:
154.83KB
Email:
su*****@adoff.app
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-26
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
AdOff Team
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/adoff/
Email:
su*****@adoff.app
Website:
https://adoff.app

Is AdOff Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

AdOff requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

AdOff may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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