Adblock Plus
One of the most popular free ad blockers for Firefox. Block annoying ads on sites like Facebook, YouTube and all other websites.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
- By:
- Adblock Plus
- Rating:
- 4.40 (11,139) 17 new ratings
- Version:
- 4.18.0 (Last updated: 2025-03-28)
- Version code:
- 5917534
- Creation date:
- 2006-01-17
- Weekly download count:
- 50,667
- Firefox on Android:
- Yes
- Permissions:
- <all_urls>
- alarms
- contextMenus
- notifications
- storage
- tabs
- unlimitedStorage
- webNavigation
- webRequest
- webRequestBlocking
- Size:
- 4.54M
- URLs:
- Website ,Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Updated:
- a day ago
Manifest V2
User reviews
Pros
- Blocks a large number of ads effectively
- Generally improves online browsing experience
- Has been reliable for years prior to recent changes
- Prevents malicious malware from ads
- Recommended by users to others
Cons
- Frequent issues with disabling on YouTube
- Ineffective in blocking ads on YouTube
- New unnecessary pop-ups asking for donations
- Users feel it has become less effective over time
- Strategy to bypass YouTube's detection is lacking
Most mentioned
- Problems with YouTube disabling the adblocker
- Frustration over ads still appearing on YouTube
- Desire for an option to disable auto-disable features for YouTube
- Concerns about the add-on asking for donations
- General decline in effectiveness over time
These summaries are automatically generated weekly using AI based on recent user reviews. User
reviews may be inaccurate, spammy, or outdated.
User reviews
by Firefox user 14398555, 2025-04-08
Since last update, app is consistently blocking 0 items on all websites. It's essentially useless now and I will be searching for a new and true ad blocker.
by Firefox user 13605028, 2025-04-07
it works!
by Firefox user 14733171, 2025-04-07
Add-on safety
Risk impact
Adblock Plus requires a lot of sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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- High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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- Medium ****** ** ********* ****** ********* *** **** ****** **** **** ** ******* ** ********** **** ***********
Risk likelihood
Adblock Plus 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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