Privacy Badger Firefox

Privacy Badger

Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.

Features & Capabilities

Privacy Badger is a powerful Chrome extension developed by the Electronic Frontier Foundation (EFF) that automatically learns to detect and block hidden trackers on websites. It enhances your online privacy by sending the Global Privacy Control signal to opt you out of data sharing and selling, and the Do Not Track signal to request companies not to track your activity. If these signals are ignored, Privacy Badger proactively blocks the offending trackers.

Beyond blocking, Privacy Badger also replaces functional trackers like video players and comment widgets with click-to-activate placeholders, ensuring usability without compromising privacy. It actively removes outgoing link click tracking on major platforms such as Facebook and Google, with continuous updates to bolster user privacy protections. To learn more, check out the FAQ on Privacy Badger's homepage. This extension is essential for users wanting to reclaim control over their online privacy effortlessly.

User Growth & Download Statistics

Manifest V2 Add-on Privacy & Security
By:
EFF Technologists
Daily users:
1,845,949 -26,234
Rating:
4.81
(3,085)
4 new ratings
Version:
2026.2.20 Last updated: 2026-02-25
Version code:
6156384
Creation date:
2014-05-01
Risk:
Very high risk impact Very low risk likelihood
Permissions:
Content scripts matches:
  • *.facebook.com
  • *.messenger.com
  • *.facebookcorewwwi.onion
  • docs.google.com
  • mail.google.com
  • www.google.com
  • www.google.ad
  • www.google.ae
  • www.google.com.af
  • www.google.com.ag
  • See more
Size:
2.29MB
Email:
ex*****@eff.org
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-20
Compare stats and ranking:

Other platforms

Chrome
Privacy Badger (v2026.6.16)
1,000,000 4.46 (1,981)
Edge
Privacy Badger (v2026.6.16)
477,146 4.80 (140)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
EFF Technologists
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/privacy-badger17/
Email:
ex*****@eff.org
Website:
https://privacybadger.org/#faq

Permission Change History

2023-12-07: Version 2023.10.31 → 2023.12.1
Add Permissions: <all_urls>
Remove Permissions: http://*/* https://*/*
2023-09-15: Version 2023.6.23 → 2023.9.12
Add Permissions: alarms

User Reviews

Across reviews, Privacy Badger is praised for protecting privacy by blocking trackers and cookies, with automatic blocking that keeps browsing smooth. Users highlight its ease of use, lightweight footprint, unobtrusive UI, and helpful tracker indicator. Many call it essential and among the best privacy tools, enjoying the distinctive badge. A few note potential redundancy with other privacy extensions, but overall it’s seen as a straightforward, reliable option for improving digital privacy with minimal effort.
Pros
  • Strong privacy protection by blocking trackers and cookies.
  • Automatic, learning-based blocking with a lightweight, unobtrusive UI.
  • Improves browsing experience by reducing ads and tracking; widely regarded as essential.
  • Easy to use with clear control over blocking domains and cookies.
  • Distinctive badge/icon and overall reliability.
Cons
Recent reviews
by Fi*****, 2026-06-19

by Ca*****, 2026-06-17

by St*****, 2026-06-15
View all user reviews ›

Is Privacy Badger Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Privacy Badger 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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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Privacy Badger has earned a good reputation and can be trusted.

Risk likelihood analysis details
  • Low This extension was updated more than 6 months ago. Older versions are more likely to be stable and safe.
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  • Low **** ********* *** **** **** ****** ******* ********** **** ****** ** ** ****** *** *****
  • Good **** ********* ** ****** ** ********
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Best Privacy Badger Alternatives

Here are some Firefox add-ons that are similar to Privacy Badger: