AdBlock for Firefox

AdBlock for Firefox

The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.

AdBlock for Firefox promo image
What is AdBlock for Firefox?

AdBlock for Firefox is the much-awaited adaptation of the popular ad blocker for Google Chrome and Safari. Instantly blocking all ads by default, it enhances the online experience by eliminating distractions from advertisements. It's an essential add-on that enables custom filter lists, provides quick in-page ad reporting, and showcases the count of blocked ads. It supports over 30 languages and offers the ability to white-list specific sites. Furthermore, it optimizes browser performance, as most ads aren't downloaded at all, saving valuable time and reducing data usage.

Stats date:
By: AdBlock
Version: 5.4.2 (Last updated: 2023-03-06)
Creation date: 2014-07-24
Weekly download count: 33,467
Firefox on Android: No
Manifest version: 2
  • tabs
  • <all_urls>
  • contextMenus
  • webRequest
  • webRequestBlocking
  • webNavigation
  • storage
  • unlimitedStorage
  • notifications
  • idle
  • See more
Size: 6.07M
Risk impact: Very high risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

Over 40 million users can't be wrong. AdBlock is the most popular ad blocker for Google Chrome and Safari. Now finally available for Firefox!

Special features:

  • All ads blocked by default.
  • Block video ads on YouTube.
  • Customize your filter lists.
  • See how many ads you've blocked.
  • Allow ads on your favorite sites in a snap.
  • Available in over 30 languages
  • Speed up your browser. Most ads aren't even downloaded at all.
  • Quick and easy in-page ad reporting.
It's your browser. What you see should be up to you. AdBlock works automatically, but it only takes a couple clicks to permanently allow ads on any page, or an entire domain. Don't mind text ads? You can easily enable them for Google search results pages. Learn more at the AdBlock website.

Our privacy policy has been updated (Effective Date: May 7, 2018) and is available at

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Helps enjoy time better by blocking ads
  • Valued for it's long time functioning
  • Secondary ad blocker
  • Does not work on YouTube and Twitch
  • Some features require payment
  • Certain websites are becoming more aggressive in dealing with ad blockers leading to delays
Most mentioned
  • YouTube
  • Ads
  • Delay in loading
View all user reviews
Risk impact

AdBlock for Firefox is not very risky to use and it requires a lot of sensitive permissions. Avoid installing this add-on unless you absolutely trust this publisher.

Risk likelihood

AdBlock for Firefox has earned a fairly good reputation and likely can be trusted.

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