AdBlocker Ultimate

Name: AdBlocker Ultimate
Rating: 4.7747 (27146 reviews)
Author: AdAvoid

Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.

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Features & Capabilities

AdBlocker Ultimate is a powerful free Chrome extension dedicated to completely removing all types of ads, including text, banner, pop-up, video, and Facebook ads. Unlike other ad blockers, it does not allow "acceptable" ads or advertiser whitelists, ensuring an uninterrupted, clean browsing experience. The extension also boosts browser performance by blocking malware and trackers, reducing CPU and memory usage for faster page loads.

Built as an open source project, AdBlocker Ultimate supports multiple browsers including Chrome, Edge, Opera, and Yandex, with versions available for iPhone, iPad, and Windows. Its extensive filtering shields users from annoying and intrusive ads, enhancing privacy and security while giving users the option to allow ads from trusted websites if desired.

User Growth & Download Statistics

Add-on Privacy & Security

By:

AdAvoid

Daily users:

1,121,068 -5,705

Rating:

4.77

(27,146) 4 new ratings

Version:

4.2.9 Last updated: 2026-06-02

Version code:

6280078

Creation date:

2016-02-18

Risk:

Permissions:

Content scripts matches:

Size:

8.51MB

Email:

su*****@adblockultimate.net

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 14

Other rankings

#29 in Privacy & Security

#6 in ad-blocking keyword 96

#7 in ad keyword 89

#9 in adblocker keyword 92

#11 in ad blocker keyword 95

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Other platforms

AdBlocker Ultimate (v4.2.9)

2,000,000 4.81

(63,133)

AdBlocker Ultimate (v4.2.9)

879,193 4.70

(3,394)

For Developers

Monetize with App Pass Boost with Extension Booster

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:

AdAvoid

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/adblocker-ultimate/

Email:

su*****@adblockultimate.net

Website:

https://adblockultimate.net/contact.html

Permission Change History

2026-04-25: Version 3.8.48 → 4.2.6

Add Permissions: cookies

Remove Permissions: unlimitedStorage

Add Optional permissions: clipboardRead clipboardWrite

User Reviews

User reviews for AdBlocker Ultimate are largely positive, highlighting reliability, stability, and cross‑platform longevity. Many users say it does what it promises and continues to perform well over years of use, earning praise like “impeccable,” “the best,” and “spectacular.” A minority notes an over-blocking issue that can hide non-ad content, including AI search results. Overall, the add-on enjoys strong satisfaction and continued confidence from a diverse user base.

Pros

Reliable and does what it promises (consistently described as working/impeccable by several users).
Stable performance across sessions and over time.
Long-term use across multiple operating systems (Windows, macOS, Linux) with ongoing satisfaction.
High levels of user satisfaction and praise (positive, enthusiastic feedback, calls it the best/commonly recommended).

Cons

Over-blocking non-ad content, including AI search results, as reported by at least one reviewer.

Recent reviews

by rr*****, 2026-06-17

by Fi*****, 2026-06-17

No complaints thus far

by Us*****, 2026-06-15

View all user reviews ›

Is AdBlocker Ultimate 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.

AdBlocker Ultimate requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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.

AdBlocker Ultimate has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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