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!

Manifest V2
By:
AdAvoid
Daily users:
1,614,780+ -15,397
Version:
3.8.34 (Last updated: 2025-04-14)
Version code:
5929537
Creation date:
2016-02-18
Permissions:
  • tabs
  • <all_urls>
  • webRequest
  • webRequestBlocking
  • webNavigation
  • storage
  • unlimitedStorage
  • contextMenus
Size:
7.42M
Full description:
See detailed description
Updated:
a day ago

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 User reviews may be inaccurate, spammy, or outdated.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


The most recent updates has resulted in several problemd I encounter with sites I frequently go to.
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.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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 **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** **** **** ****** ******* ********** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

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