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

AdBlocker Ultimate - Ultimate Ad Blocking
"AdBlocker Ultimate" is a comprehensive Firefox extension that strips away every form of advertisement and tracking, enhancing browsing speed and security. It's a tool committed to user privacy, rejecting the concept of 'acceptable ads' or whitelisted advertisers. Users gain back their web browsing experience with improved performance and reduced resource consumption. As an open-source project, it invites user collaboration for continual improvement.
Add-on stats
Manifest V2
By: AdAvoid
Rating: 4.78
19 new ratings
(26,029)
Weekly download count: 9,644
Firefox on Android: Yes
Permissions:
- tabs
- <all_urls>
- webRequest
- webRequestBlocking
- webNavigation
- storage
- unlimitedStorage
- contextMenus
Size: 7.11M
Email: su*****@adblockultimate.net
URLs: Website ,Privacy policy
Full description: See detailed description
Ranking
# 9
Other platforms
Not available on Android
User reviews
Pros
- Effective ad blocking
- Removes undetected ads
- User-friendly experience
- Consistent performance on various websites
Cons
Most mentioned
- Effective ad blocker
- Removes unwanted ads
- User satisfaction
User reviews
by Apache Flower, 2025-03-09
by Firefox user 17565712, 2025-03-08
.
by sachin, 2025-03-08
Add-on safety
Risk impact
AdBlocker Ultimate requires some sensitive permissions that could impact your browser and data security. 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
We don't have sufficient data to confidently determine the risk likelihood of AdBlocker Ultimate. Use it at your own risk.
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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