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Preview of AdBlocker Ultimate

AdBlocker Ultimate by AdAvoid

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

Available on Firefox for Android™Available on Firefox for Android™
4.8 (26,641 reviews)4.8 (26,641 reviews)
1,389,909 Users1,389,909 Users
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About this extension
AdBlocker Ultimate is designed with a singular purpose: remove all ads so you can focus your attention on the content you want.

Features
- Remove all ads
- Helps block malware and tracking
- Improves browser performance by removing unwanted content
- No "acceptable" ads or whitelisted websites/ad networks

AdBlocker Ultimate is a free extension that blocks ads and malicious domains known to spread malware; it also disables sneaky tracking. We have extensive filters that filter against annoying display and video ads (including YouTube).

Unlike other ad blockers, we do not have “acceptable ads” or an advertiser whitelist (i.e. certain advertisers pay to bypass ad filters). Blocking ads has the added benefit of speeding up browsing because filtering out ads reduces CPU and memory usage.

AdBlocker Ultimate allows you to easily accept ads from websites you choose, in cases where you want to give advertising credit to certain trusted websites.

Types of ads we block
- Text ads
- Banner ads
- Pop-up ads
- Pop-under ads
- Overlay ads
- Interstitial page ads
- Video ads
- Webmail ads
- Facebook ads

Benefits of ad blocking
- Improve browser speed
- Improve page load speed
- Decrease memory usage
- Decrease bandwidth

Open Source
AdBlocker Ultimate is an open source project:
https://github.com/adblockultimate/

Found a bug?
Use the Report a Problem form:
https://adblockultimate.net/report.html

Also available for
Google Chrome
Microsoft Edge
Opera
Yandex
iPhone and iPad
Windows
Rated 4.8 by 26,641 reviewers
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Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access browser activity during navigation
  • Access your data for all websites
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
Version
3.8.40
Size
7.14 MB
Last updated
7 days ago (Aug 1, 2025)
Related Categories
  • Privacy & Security
License
GNU Lesser General Public License v3.0 only
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • ad blocker
  • anti malware
  • anti tracker
  • content blocker
  • privacy
  • security
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Release notes for 3.8.40
Updated: language translations
Updated: local filters
Updated: core libraries
Updated: minor fixes & improvements
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