Privacy Badger

Name: Privacy Badger
Rating: 4.8015 (2821 reviews)
Author: EFF Technologists

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

Download

Install Compare

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.

Add-on Privacy & Security Utilities

By:

EFF Technologists

Daily users:

1,599,023 -17,068

Rating:

4.80

(2,821) 22 new ratings

Version:

2025.5.30 Last updated: 2025-06-06

Version code:

5959944

Creation date:

2014-05-01

Risk:

Permissions:

<all_urls>
alarms
privacy
storage
tabs
webNavigation
webRequest
webRequestBlocking

Size:

1.91MB

Email:

ex*****@eff.org

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Browser Add-ons

Updated:

14 hours ago

Ranking

# 8

Other rankings

#2 in Privacy & Security

#1 in badge keyword 12

#1 in company keyword 11

#1 in data privacy keyword 29

#1 in lead keyword 13

Upgrade to see more rankings

Other platforms

Privacy Badger (v2025.5.30)

1,000,000 4.42

(1,823)

Privacy Badger (v2025.5.30)

434,514 4.80

(127)

User reviews

Privacy Badger is a highly praised Firefox add-on developed by the EFF that effectively blocks invisible trackers while maintaining a simple and user-friendly interface. Users appreciate that it learns automatically without breaking websites and runs silently without slowing browsing. The extension is trusted, free, and open-source, making it a must-have for protecting online privacy with minimal effort.

Pros

Effectively blocks invisible trackers to protect privacy
Simple, easy to use, and runs quietly in the background
Developed and maintained by the trustworthy Electronic Frontier Foundation
Does not rely on predefined lists but learns tracking behavior automatically
Free and open-source software empowering users to control their data

Cons

Recent reviews

by Fi*****, 2025-06-21

It's okay but it doesn't find everything that another extension does, possibly paid to not find them or told to not, looking at Google and Amazon, some of the stuff on webpages don't show up even though they are a tracker, I had to do tons of research to find another extension to block that crap. Having your personal data sold is a bad thing in this and day and age, I was hoping Privacy Badger could do it all but it never does and it's been years so yeah clearly a reason behind the curtains.

by Fi*****, 2025-06-21

Well said, and I agree 100% with the user's review below. I have supported (by monthly donation) the work by EFF for years, and I am about to restore it (new mop). His/Her review: "Privacy Badger is a must-have extension for anyone serious about protecting their privacy online. Developed by the Electronic Frontier Foundation, it's both trustworthy and effective. I really appreciate how it automatically learns to block invisible trackers without breaking websites, unlike some other blockers that need constant tweaking." "The interface is clean and easy to use, and I love that it respects user autonomy—it doesn’t rely on predefined lists but intelligently reacts to tracking behavior. It runs quietly in the background, doing its job without slowing down my browsing experience." "This is one of those rare add-ons that just works. Huge thanks to the EFF team for making a free, open-source tool that empowers users to take control of their data." "Highly recommended!" Rated 5 out of 5 by Firefox user XXXXXXXX, 12 days ago:

by Fi*****, 2025-06-20

View all user reviews ›

Extension safety

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.
Critical ****** ****** ** ******* ***** ***** *** ** **** ** ***** **** ******** ****** *** ******** ********** * ******* ********
Critical ******* ****** ** *** ********* ******** ********************
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
High *** ****** ******* ********* ***** ** ******** *** ********** **** ********

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 Browser Add-ons, 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 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

Instantly check and monitor your browser extensions' risks and permissions with Extension Guard.