AdBlocker Ultimate

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

AdBlocker Ultimate

AdBlocker Ultimate is your go-to Firefox extension for a truly ad-free browsing experience. This powerful add-on is designed to remove all ads, including text, banner, pop-ups, and video ads, ensuring you can focus purely on the content you want.

Key Features:

Complete Ad Blocking: Say goodbye to all forms of ads without any exceptions.
Tracker & Malware Protection: It effectively blocks tracking scripts and dangerous domains known for malware.
Enhanced Performance: Improved browser speed and page load times by minimizing unwanted content and conserving system resources.

Unlike other ad blockers, AdBlocker Ultimate doesn’t compromise with “acceptable ads” or whitelisted advertisers, making it a truly clean tool to enhance your web experience. You can also selectively allow ads from sites you trust. Plus, it’s open-source, giving you full transparency and control. For a seamless and fast internet experience, install AdBlocker Ultimate today!

Download

By:: AdAvoid
Daily users:: 1,614,780+ -15,397
Rating:: 4.78

(26,216) 31 new ratings
Version:: 3.8.34 (Last updated: 2025-04-14)
Version code:: 5929537
Creation date:: 2016-02-18
Risk:: Very high risk impact Low risk likelihood
Permissions:: tabs
<all_urls>
webRequest
webRequestBlocking
webNavigation
storage
unlimitedStorage
contextMenus
Size:: 7.42M
Email:: su*****@adblockultimate.net
URLs:: Website ,Privacy policy
Full description:: See detailed description
Source:: Firefox Browser Add-ons
Updated:: a day ago

Ranking

# 9

Other rankings

#27 in Privacy & Security

#5 in ad-blocking keyword 97

#9 in adblocker keyword 92

#10 in malware keyword 42

#11 in ad blocker keyword 97

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Other platforms

AdBlocker Ultimate (v4.0.73)

2,000,000+ 4.82

(58,674)

AdBlocker Ultimate (v4.0.73)

682,406+ 4.80

(3,194)

User reviews

Pros

Effective at blocking ads
User-friendly and easy to use
Recommended by satisfied users
Long-term reliability and usability

Cons

Causes issues with certain banking and club websites after recent updates

Most mentioned

Effective ad blocking
Problems with some websites after updates

These summaries are automatically generated weekly using AI based on recent user reviews. User reviews may be inaccurate, spammy, or outdated.

User reviews

excellent add on

by ibm650, 2025-04-17

by Firefox user 17270162, 2025-04-16

The most recent updates has resulted in several problemd I encounter with sites I frequently go to.

by Firefox user 18167951, 2025-04-16

View all user reviews

Add-on safety

Risk impact

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

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.
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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