Privacy Badger
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Privacy Badger is a
free and open-source Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source ...
browser extension A browser extension is a small software module for customizing a web browser. Browsers typically allow a variety of extensions, including user interface modifications, cookie management, ad blocking, and the custom scripting and styling of web p ...
for
Google Chrome Google Chrome is a cross-platform web browser developed by Google. It was first released in 2008 for Microsoft Windows, built with free software components from Apple WebKit and Mozilla Firefox. Versions were later released for Linux, macOS ...
,
Mozilla Firefox Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. It uses the Gecko rendering engine to display web pages, which implements current and a ...
,
Opera Opera is a form of theatre in which music is a fundamental component and dramatic roles are taken by singers. Such a "work" (the literal translation of the Italian word "opera") is typically a collaboration between a composer and a librett ...
, and
Firefox for Android Firefox for Android is a web browser developed by Mozilla for Android smartphones and tablet computers. As with its desktop version, it uses the Gecko layout engine, and supports features such as synchronization with Firefox Sync, blocking w ...
created by the
Electronic Frontier Foundation The Electronic Frontier Foundation (EFF) is an international non-profit digital rights group based in San Francisco, California. The foundation was formed on 10 July 1990 by John Gilmore, John Perry Barlow and Mitch Kapor to promote Internet ci ...
(EFF). Its purpose is to promote a balanced approach to
internet privacy Internet privacy involves the right or mandate of personal privacy concerning the storing, re-purposing, provision to third parties, and displaying of information pertaining to oneself via Internet. Internet privacy is a subset of data privacy. Pr ...
between consumers and content providers by blocking
advertisements Advertising is the practice and techniques employed to bring attention to a product or service. Advertising aims to put a product or service in the spotlight in hopes of drawing it attention from consumers. It is typically used to promote a ...
and
tracking cookies HTTP cookies (also called web cookies, Internet cookies, browser cookies, or simply cookies) are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's we ...
that do not respect the
Do Not Track Do Not Track (DNT) is a formerly official HTTP header field, designed to allow internet users to opt-out of tracking by websites—which includes the collection of data regarding a user's activity across multiple distinct contexts, and the retent ...
setting in a user's web browser. A second purpose, served by free distribution, has been to encourage membership in and donation to the EFF.


Description

The EFF states: "If an advertiser seems to be tracking you across multiple websites without your permission, Privacy Badger automatically blocks that advertiser from loading any more content in your browser. To the advertiser, it's like you suddenly disappeared." Privacy Badger works by detecting the presence of content loaded from third-party domains when you visit a website, then blocking those domains which are determined to be tracking you. Controls on the software allow selective blocking of the third-party domains based on user preference. While some of its code is based on
Adblock Plus Adblock Plus (ABP) is a free and open-source browser extension for content-filtering and ad blocking. It is developed by developer Wladimir Palant's Eyeo GmbH, a German software company. The extension has been released for Mozilla Firefox ( ...
, Privacy Badger only blocks those ads which come with embedded trackers. Privacy Badger has been noted as one recommended tool in a set of tools to protect online privacy. In October 2020, following security disclosures by the Google Security Team, Privacy Badger changed its default behavior. While it would previously learn to block new trackers heuristically after installed, it now defaults to blocking only trackers it already knows from automated testing before release. While it can still be configured to learn heuristically, it is no longer the default option because it can be exploited by third-parties to fingerprint the user based on trackers it blocks.


History

The
alpha version A software release life cycle is the sum of the stages of development and maturity for a piece of computer software ranging from its initial development to its eventual release, and including updated versions of the released version to help impro ...
was released on 1 May 2014, followed by a
beta Beta (, ; uppercase , lowercase , or cursive ; grc, βῆτα, bē̂ta or ell, βήτα, víta) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Modern Greek, it represents the voiced labiod ...
on 21 July 2014. In April 2017, the EFF announced that Privacy Badger had surpassed one million users.


Reception

Several publications reported on Privacy Badger in May 2014, following its alpha release. Ian Paul, for ''
PC World ''PC World'' (stylized as PCWorld) is a global computer magazine published monthly by IDG. Since 2013, it has been an online only publication. It offers advice on various aspects of PCs and related items, the Internet, and other personal tech ...
'', mentions that Privacy Badger "only blocks third-party tracking, not first party", and mentions that prevention of
browser fingerprinting A device fingerprint or machine fingerprint is information collected about the software and hardware of a remote computing device for the purpose of identification. The information is usually assimilated into a brief identifier using a fingerprinti ...
is planned for a future release. ''
Ars Technica ''Ars Technica'' is a website covering news and opinions in technology, science, politics, and society, created by Ken Fisher and Jon Stokes in 1998. It publishes news, reviews, and guides on issues such as computer hardware and software, sci ...
'' notes that if an advertiser makes a commitment to respect Do Not Track requests, their cookies will be unblocked from Privacy Badger. Nathan Willis, writing for
LWN.net LWN.net is a computing webzine with an emphasis on free software and software for Linux and other Unix-like operating systems. It consists of a weekly issue, separate stories which are published most days, and threaded discussion attached to ...
, describes the green, yellow, and red sliders of the Privacy Badger menu as being a "nice visualization aid", making it easy for the user to toggle the trackers on and off, if desired – describing it as much easier to browse through than
ad blocking Ad blocking or ad filtering is a software capability for blocking or altering online advertising in a web browser, an application or a network. This may be done using browser extensions or other methods. Technologies and native countermeasures ...
add-on interfaces. Kif Leswing writing for
Gigaom Gigaom is a technology focused analyst firm and media company. The company evolved from a blog which offered news, analysis, and opinions on startup companies, emerging technologies, and other technology related topics. It was started by Om Malik ...
writes, "Privacy Badger’s
blacklist Blacklisting is the action of a group or authority compiling a blacklist (or black list) of people, countries or other entities to be avoided or distrusted as being deemed unacceptable to those making the list. If someone is on a blacklist, t ...
is generated through heuristic blocking, which means it gets better the longer it is used", and wrote in May 2014 that Privacy Badger "breaks a lot of websites", but considers it important as it is created by a
nonprofit organization A nonprofit organization (NPO) or non-profit organisation, also known as a non-business entity, not-for-profit organization, or nonprofit institution, is a legal entity organized and operated for a collective, public or social benefit, in co ...
, and sums it up as "more than good enough".


Similar blockers

Privacy Badger belongs to a class of free tracker blockers which function as web browser plugins. tracker blockers similar to Privacy Badger include Disconnect,
uBlock Origin uBlock Origin (; "" ) is a free and open-source browser extension for content filtering, including ad blocking. The extension is available for Chrome, Chromium, Edge, Firefox, Opera, Pale Moon, as well as versions of Safari prior to 13 ...
, Redmorph and
Ghostery Ghostery is a free and open-source privacy and security-related browser extension and mobile browser application. Since February 2017, it has been owned by the German company Cliqz International GmbH (formerly owned by Evidon, Inc., which wa ...
. Privacy Badger has also been compared favorably to Blur, which has an annual subscription fee.


See also

* Blur – An open-source application designed to stop non-consensual third party trackers. *
HTTPS Everywhere HTTPS Everywhere is a free and open-source browser extension for Google Chrome, Microsoft Edge, Mozilla Firefox, Opera, Brave, Vivaldi and Firefox for Android, which is developed collaboratively by The Tor Project and the Electronic Frontier Fo ...
– A free and open-source browser extension developed by
The Tor Project The Tor Project, Inc. is a Seattle-based 501(c)(3) research-education nonprofit organization founded by computer scientists Roger Dingledine, Nick Mathewson and five others. The Tor Project is primarily responsible for maintaining software for ...
and the EFF that automatically makes websites use the more secure
HTTPS Hypertext Transfer Protocol Secure (HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It is used for secure communication over a computer network, and is widely used on the Internet. In HTTPS, the communication protocol is enc ...
connection. *
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
– An open-source
network monitoring Network monitoring is the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, SMS or other alarms) in case of outages or other trouble. Network monitorin ...
utility developed by the EFF to monitor network traffic.


References


External links

* {{FOSS Internet privacy software Electronic Frontier Foundation 2014 software Google Chrome extensions Free Firefox WebExtensions Software using the GPL license