Starting analysis...
Privacy Badger
Version 2026.2.20 View in Chrome Web Store
Last scanned: about 1 month ago
| force re-scan
Extension Details
Developer:
Electronic Frontier Foundation
Rating:
4.5 ★
(2K ratings)
Users:
1,000,000
Context-Aware Verdict
This section provides a Claude-based AI analysis that applies additional context to the risk. Results are not guaranteed to be accurate.
LOW
Overall Risk
Trust Factors:
Privacy Badger is developed by the Electronic Frontier Foundation (EFF), a highly reputable digital rights organization with a strong track record of privacy advocacy. With 1 million users and a 4.5-star rating from 2,000 reviews, it has demonstrated widespread community trust. The EFF's mission aligns perfectly with the extension's purpose of blocking trackers and protecting user privacy.
Concerns:
While the security analysis flags multiple high-risk permissions, these are actually necessary for Privacy Badger's core functionality. The privacy permission allows it to modify browser privacy settings to enhance protection. The webRequest and webNavigation permissions enable tracker detection and blocking. The broad host permissions and content script injection capabilities are required to analyze and block tracking scripts across all websites. The tabs permission helps coordinate protection across browser sessions.
Recommendations:
This extension represents a rare case where extensive permissions are justified by both functionality and developer trustworthiness. The EFF's reputation and transparent privacy practices make this extension safe for general use. Users concerned about the broad permissions can review the EFF's open-source code and privacy policy. No special isolation measures are needed - Privacy Badger can be safely installed in your main browser profile. Regular users seeking enhanced privacy protection should consider this extension highly recommended despite the technical security flags.
Findings
This section provides a detailed analysis of the extension's security posture, without broader context. Assumes worst-case impact.
HIGH
Broad Content Script Injection
This extension can inject scripts into any website. This means it could potentially read sensitive data, modify website content, or steal credentials.
HIGH
Broad Host Permissions
This extension has broad host permissions allowing it to access many or all websites. This could potentially be used to steal sensitive data or track browsing activity.
HIGH
High-Risk Permission: privacy
This extension has the privacy permission. Can modify privacy settings. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: tabs
This extension has the tabs permission. Can access browser tab information and manipulate tabs. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: webNavigation
This extension has the webNavigation permission. Can track your web navigation. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: webRequest
This extension has the webRequest permission. Can intercept and modify web requests. This could potentially be used maliciously to compromise security or privacy.
MEDIUM
Medium-Risk Permission: storage
This extension has the storage permission. Can store data locally.
Security Analysis Details
Required Permissions:
- alarms
- declarativeNetRequest
- privacy
- scripting
- storage
- tabs
- webNavigation
- webRequest
Host Permissions:
- <all_urls>
Embedded URLs (881 total):
| https://privacybadger.org/ | http://www.gnu.org/licenses/ | |
| https://privacybadger.org/#What-is-a-third-party-tracker | https://www.eff.org/badger-pretraining | |
| https://www.bleepingcomputer.com/news/software/major-browsers-to-prevent-disabling-of-click-tracking-privacy-risk/ | https://www.google.com/chrome/privacy/archive/20220623/#pre-rendering | |
| https://www.google.com/chrome/privacy/archive/20220623/#how-chrome-handles-your-information | https://www.eff.org/deeplinks/2024/07/why-privacy-badger-opts-you-out-googles-privacy-sandbox | |
| https://www.eff.org/badger-evolution | https://privacybadger.org/#I-found-a-bug%21-What-do-I-do-now | |
| https://www.eff.org/ | https://privacybadger.org/#faq | |
| https://supporters.eff.org/donate/support-privacy-badger | https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fprivacybadger.org%2F | |
| https://twitter.com/intent/post?text=I%20just%20installed%20Privacy%20Badger%2C%20a%20browser%20extension%20from%20%40EFF%20that%20automatically%20learns%20to%20block%20hidden%20trackers%20https%3A%2F%2Fprivacybadger.org%2F | https://mastodonshare.com/?text=I%20just%20installed%20Privacy%20Badger%2C%20a%20browser%20extension%20from%20%40eff%40mastodon.social%20that%20automatically%20learns%20to%20block%20hidden%20trackers%20https%3A%2F%2Fprivacybadger.org%2F | |
| https://bsky.app/intent/compose?text=I%20just%20installed%20Privacy%20Badger%2C%20a%20browser%20extension%20from%20%40eff.org%20that%20automatically%20learns%20to%20block%20hidden%20trackers%20https%3A%2F%2Fprivacybadger.org%2F | https://www.eff.org/code/privacy/policy | |
| http://www.w3.org/2000/svg | http://www.w3.org/1999/xlink | |
| http://www.inkscape.org/ | http://purl.org/dc/elements/1.1/ | |
| http://creativecommons.org/ns# | http://www.w3.org/1999/02/22-rdf-syntax-ns# | |
| http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd | http://www.inkscape.org/namespaces/inkscape | |
| http://purl.org/dc/dcmitype/StillImage | https://github.com/EFForg/privacybadger/blob/master/doc/DESIGN-AND-ROADMAP.md#data-structures | |
| https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ | https://github.com/parshap/node-sanitize-filename/blob/ef1e8ad58e95eb90f8a01f209edf55cd4176e9c8/index.js | |
| https://privacybadger.org/#How-does-Privacy-Badger-work | https://stackoverflow.com/a/22635728 | |
| https://github.com/EFForg/privacybadger/pull/2245#issuecomment-545545717 | https://support.cloudflare.com/hc/en-us/articles/200170156-Understanding-the-Cloudflare-Cookies | |
| http://www.opensource.org/licenses/mit-license.php | https://github.com/EFForg/privacybadger/issues/3036#issuecomment-2645926189 | |
| https://github.com/ghostwords/chameleon | https://github.com/EFForg/privacybadger/pull/1522 | |
| https://github.com/EFForg/privacybadger/commit/39d5d0899e22d1c451d429e44553c5f9cad7fc46 | https://privacybadger.org/#How-does-Privacy-Badger-handle-social-media-widgets | |
| https://embed.bsky.app/embed/ | https://bsky.app/profile/ | |
| https://www.tiktok.com/@ | https://twitter.com/ | |
| https://www.threads.net/ | https://www.instagram.com/ | |
| https://twitter.com/x/status/ | https://www.instagram.com/p/ | |
| https://github.com/v8/v8/wiki/Stack-Trace-API | https://github.com/csnover/TraceKit/blob/b76ad786f84ed0c94701c83d8963458a8da54d57/tracekit.js#L641 | |
| https://stackoverflow.com/questions/49092423/how-to-break-on-localstorage-changes | https://bugs.chromium.org/p/chromium/issues/detail?id=1207006#c4 | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1979084 | https://rumble.com/embedJS/ | |
| https://rumble.com/embed/ | https://www.google.com/recaptcha/ | |
| https://www.recaptcha.net/recaptcha/ | https://www.youtube.com/iframe_api | |
| https://www.youtube.com/player_api | https://www.youtube.com/embed/ | |
| https://groups.google.com/a/chromium.org/g/chromium-extensions/c/0ei-UCHNm34/m/lDaXwQhzBAAJ | https://issues.chromium.org/issues/40095810 | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1787379 | https://github.com/uBlockOrigin/uBlock-issues/issues/1992#issuecomment-1058056302 | |
| https://challenges.cloudflare.com | https://cdn.embedly.com | |
| https://github.com/w3c/webextensions/issues/57#issuecomment-914491167 | https://github.com/w3c/webextensions/issues/78#issuecomment-921058071 | |
| https://privacybadger.org/#-I-am-an-online-advertising-tracking-company.--How-do-I-stop-Privacy-Badger-from-blocking-me | https://github.com/KittyGiraudel/focusable-selectors/tree/main | |
| https://github.com/KittyGiraudel/focusable-selectors/blob/main/LICENSE | https://github.com/KittyGiraudel/focusable-selectors/issues/12 | |
| https://privacybadger.org/#Is-Privacy-Badger-breaking-YouTube | https://privacybadger.org/reporting | |
| https://www.w3.org/WAI/WCAG22/Understanding/focus-not-obscured-minimum.html | https://www.w3.org/WAI/ARIA/apg/patterns/dialog-modal/ | |
| https://issues.chromium.org/issues/40825583 | https://github.com/w3c/webextensions/issues/763 | |
| https://www.eff.org/deeplinks/2023/10/privacy-badger-learns-block-ever-more-trackers | https://github.com/EFForg/privacybadger/issues/2712 |
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Raw Manifest
{ "name": "__MSG_name__", "icons": { "16": "icons/badger-16.png", "32": "icons/badger-32.png", "48": "icons/badger-48.png", "64": "icons/badger-64.png", "128": "icons/badger-128.png" }, "action": { "default_area": "navbar", "default_icon": { "16": "icons/badger-16-disabled.png", "32": "icons/badger-32-disabled.png", "64": "icons/badger-64-disabled.png" }, "default_popup": "skin/popup.html", "default_title": "__MSG_name__" }, "author": { "email": "eff.software.projects@gmail.com" }, "storage": { "managed_schema": "data/schema.json" }, "version": "2026.2.20", "incognito": "spanning", "background": { "type": "module", "scripts": [ "js/background.js" ], "service_worker": "js/background.js" }, "options_ui": { "page": "/skin/options.html", "open_in_tab": true }, "update_url": "https://clients2.google.com/service/update2/crx", "description": "__MSG_description__", "permissions": [ "alarms", "declarativeNetRequest", "privacy", "scripting", "storage", "tabs", "webNavigation", "webRequest" ], "default_locale": "en_US", "content_scripts": [ { "js": [ "js/firstparties/lib/utils.js", "js/firstparties/facebook.js" ], "run_at": "document_idle", "matches": [ "https://*.facebook.com/*", "http://*.facebook.com/*", "https://*.messenger.com/*", "http://*.messenger.com/*", "*://*.facebookcorewwwi.onion/*" ] }, { "js": [ "js/firstparties/lib/utils.js", "js/firstparties/google.js" ], "run_at": "document_idle", "matches": [ "https://docs.google.com/*", "http://docs.google.com/*", "https://mail.google.com/*", "http://mail.google.com/*", "https://www.google.com/*", "http://www.google.com/*", "https://www.google.ad/*", "http://www.google.ad/*", "https://www.google.ae/*", "http://www.google.ae/*", "https://www.google.com.af/*", "http://www.google.com.af/*", "https://www.google.com.ag/*", "http://www.google.com.ag/*", "https://www.google.com.ai/*", "http://www.google.com.ai/*", "https://www.google.al/*", "http://www.google.al/*", "https://www.google.am/*", "http://www.google.am/*", "https://www.google.co.ao/*", "http://www.google.co.ao/*", "https://www.google.com.ar/*", "http://www.google.com.ar/*", "https://www.google.as/*", "http://www.google.as/*", "https://www.google.at/*", "http://www.google.at/*", "https://www.google.com.au/*", "http://www.google.com.au/*", "https://www.google.az/*", "http://www.google.az/*", "https://www.google.ba/*", "http://www.google.ba/*", "https://www.google.com.bd/*", "http://www.google.com.bd/*", "https://www.google.be/*", "http://www.google.be/*", "https://www.google.bf/*", "http://www.google.bf/*", "https://www.google.bg/*", "http://www.google.bg/*", "https://www.google.com.bh/*", "http://www.google.com.bh/*", "https://www.google.bi/*", "http://www.google.bi/*", "https://www.google.bj/*", "http://www.google.bj/*", "https://www.google.com.bn/*", "http://www.google.com.bn/*", "https://www.google.com.bo/*", "http://www.google.com.bo/*", "https://www.google.com.br/*", "http://www.google.com.br/*", "https://www.google.bs/*", "http://www.google.bs/*", "https://www.google.bt/*", "http://www.google.bt/*", "https://www.google.co.bw/*", "http://www.google.co.bw/*", "https://www.google.by/*", "http://www.google.by/*", "https://www.google.com.bz/*", "http://www.google.com.bz/*", "https://www.google.ca/*", "http://www.google.ca/*", "https://www.google.cd/*", "http://www.google.cd/*", "https://www.google.cf/*", "http://www.google.cf/*", "https://www.google.cg/*", "http://www.google.cg/*", "https://www.google.ch/*", "http://www.google.ch/*", "https://www.google.ci/*", "http://www.google.ci/*", "https://www.google.co.ck/*", "http://www.google.co.ck/*", "https://www.google.cl/*", "http://www.google.cl/*", "https://www.google.cm/*", "http://www.google.cm/*", "https://www.google.cn/*", "http://www.google.cn/*", "https://www.google.com.co/*", "http://www.google.com.co/*", "https://www.google.co.cr/*", "http://www.google.co.cr/*", "https://www.google.com.cu/*", "http://www.google.com.cu/*", "https://www.google.cv/*", "http://www.google.cv/*", "https://www.google.com.cy/*", "http://www.google.com.cy/*", "https://www.google.cz/*", "http://www.google.cz/*", "https://www.google.de/*", "http://www.google.de/*", "https://www.google.dj/*", "http://www.google.dj/*", "https://www.google.dk/*", "http://www.google.dk/*", "https://www.google.dm/*", "http://www.google.dm/*", "https://www.google.com.do/*", "http://www.google.com.do/*", "https://www.google.dz/*", "http://www.google.dz/*", "https://www.google.com.ec/*", "http://www.google.com.ec/*", "https://www.google.ee/*", "http://www.google.ee/*", "https://www.google.com.eg/*", "http://www.google.com.eg/*", "https://www.google.es/*", "http://www.google.es/*", "https://www.google.com.et/*", "http://www.google.com.et/*", "https://www.google.fi/*", "http://www.google.fi/*", "https://www.google.com.fj/*", "http://www.google.com.fj/*", "https://www.google.fm/*", "http://www.google.fm/*", "https://www.google.fr/*", "http://www.google.fr/*", "https://www.google.ga/*", "http://www.google.ga/*", "https://www.google.ge/*", "http://www.google.ge/*", "https://www.google.gg/*", "http://www.google.gg/*", "https://www.google.com.gh/*", "http://www.google.com.gh/*", "https://www.google.com.gi/*", "http://www.google.com.gi/*", "https://www.google.gl/*", "http://www.google.gl/*", "https://www.google.gm/*", "http://www.google.gm/*", "https://www.google.gr/*", "http://www.google.gr/*", "https://www.google.com.gt/*", "http://www.google.com.gt/*", "https://www.google.gy/*", "http://www.google.gy/*", "https://www.google.com.hk/*", "http://www.google.com.hk/*", "https://www.google.hn/*", "http://www.google.hn/*", "https://www.google.hr/*", "http://www.google.hr/*", "https://www.google.ht/*", "http://www.google.ht/*", "https://www.google.hu/*", "http://www.google.hu/*", "https://www.google.co.id/*", "http://www.google.co.id/*", "https://www.google.ie/*", "http://www.google.ie/*", "https://www.google.co.il/*", "http://www.google.co.il/*", "https://www.google.im/*", "http://www.google.im/*", "https://www.google.co.in/*", "http://www.google.co.in/*", "https://www.google.iq/*", "http://www.google.iq/*", "https://www.google.is/*", "http://www.google.is/*", "https://www.google.it/*", "http://www.google.it/*", "https://www.google.je/*", "http://www.google.je/*", "https://www.google.com.jm/*", "http://www.google.com.jm/*", "https://www.google.jo/*", "http://www.google.jo/*", "https://www.google.co.jp/*", "http://www.google.co.jp/*", "https://www.google.co.ke/*", "http://www.google.co.ke/*", "https://www.google.com.kh/*", "http://www.google.com.kh/*", "https://www.google.ki/*", "http://www.google.ki/*", "https://www.google.kg/*", "http://www.google.kg/*", "https://www.google.co.kr/*", "http://www.google.co.kr/*", "https://www.google.com.kw/*", "http://www.google.com.kw/*", "https://www.google.kz/*", "http://www.google.kz/*", "https://www.google.la/*", "http://www.google.la/*", "https://www.google.com.lb/*", 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"http://www.google.mu/*", "https://www.google.mv/*", "http://www.google.mv/*", "https://www.google.mw/*", "http://www.google.mw/*", "https://www.google.com.mx/*", "http://www.google.com.mx/*", "https://www.google.com.my/*", "http://www.google.com.my/*", "https://www.google.co.mz/*", "http://www.google.co.mz/*", "https://www.google.com.na/*", "http://www.google.com.na/*", "https://www.google.com.ng/*", "http://www.google.com.ng/*", "https://www.google.com.ni/*", "http://www.google.com.ni/*", "https://www.google.ne/*", "http://www.google.ne/*", "https://www.google.nl/*", "http://www.google.nl/*", "https://www.google.no/*", "http://www.google.no/*", "https://www.google.com.np/*", "http://www.google.com.np/*", "https://www.google.nr/*", "http://www.google.nr/*", "https://www.google.nu/*", "http://www.google.nu/*", "https://www.google.co.nz/*", "http://www.google.co.nz/*", "https://www.google.com.om/*", "http://www.google.com.om/*", "https://www.google.com.pa/*", "http://www.google.com.pa/*", "https://www.google.com.pe/*", "http://www.google.com.pe/*", "https://www.google.com.pg/*", "http://www.google.com.pg/*", "https://www.google.com.ph/*", "http://www.google.com.ph/*", "https://www.google.com.pk/*", "http://www.google.com.pk/*", "https://www.google.pl/*", "http://www.google.pl/*", "https://www.google.pn/*", "http://www.google.pn/*", "https://www.google.com.pr/*", "http://www.google.com.pr/*", "https://www.google.ps/*", "http://www.google.ps/*", "https://www.google.pt/*", "http://www.google.pt/*", "https://www.google.com.py/*", "http://www.google.com.py/*", "https://www.google.com.qa/*", "http://www.google.com.qa/*", "https://www.google.ro/*", "http://www.google.ro/*", "https://www.google.ru/*", "http://www.google.ru/*", "https://www.google.rw/*", "http://www.google.rw/*", "https://www.google.com.sa/*", "http://www.google.com.sa/*", "https://www.google.com.sb/*", "http://www.google.com.sb/*", "https://www.google.sc/*", "http://www.google.sc/*", "https://www.google.se/*", "http://www.google.se/*", "https://www.google.com.sg/*", "http://www.google.com.sg/*", "https://www.google.sh/*", "http://www.google.sh/*", "https://www.google.si/*", "http://www.google.si/*", "https://www.google.sk/*", "http://www.google.sk/*", "https://www.google.com.sl/*", "http://www.google.com.sl/*", "https://www.google.sn/*", "http://www.google.sn/*", "https://www.google.so/*", "http://www.google.so/*", "https://www.google.sm/*", "http://www.google.sm/*", "https://www.google.sr/*", "http://www.google.sr/*", "https://www.google.st/*", "http://www.google.st/*", "https://www.google.com.sv/*", "http://www.google.com.sv/*", "https://www.google.td/*", "http://www.google.td/*", "https://www.google.tg/*", "http://www.google.tg/*", "https://www.google.co.th/*", "http://www.google.co.th/*", "https://www.google.com.tj/*", "http://www.google.com.tj/*", "https://www.google.tl/*", "http://www.google.tl/*", "https://www.google.tm/*", "http://www.google.tm/*", "https://www.google.tn/*", "http://www.google.tn/*", "https://www.google.to/*", "http://www.google.to/*", "https://www.google.com.tr/*", "http://www.google.com.tr/*", "https://www.google.tt/*", "http://www.google.tt/*", "https://www.google.com.tw/*", "http://www.google.com.tw/*", "https://www.google.co.tz/*", "http://www.google.co.tz/*", "https://www.google.com.ua/*", "http://www.google.com.ua/*", "https://www.google.co.ug/*", "http://www.google.co.ug/*", "https://www.google.co.uk/*", "http://www.google.co.uk/*", "https://www.google.com.uy/*", "http://www.google.com.uy/*", "https://www.google.co.uz/*", "http://www.google.co.uz/*", "https://www.google.com.vc/*", "http://www.google.com.vc/*", "https://www.google.co.ve/*", "http://www.google.co.ve/*", "https://www.google.vg/*", "http://www.google.vg/*", "https://www.google.co.vi/*", "http://www.google.co.vi/*", "https://www.google.com.vn/*", "http://www.google.com.vn/*", "https://www.google.vu/*", "http://www.google.vu/*", "https://www.google.ws/*", "http://www.google.ws/*", "https://www.google.rs/*", "http://www.google.rs/*", "https://www.google.co.za/*", "http://www.google.co.za/*", "https://www.google.co.zm/*", "http://www.google.co.zm/*", "https://www.google.co.zw/*", "http://www.google.co.zw/*", "https://www.google.cat/*", "http://www.google.cat/*" ] }, { "js": [ "js/contentscripts/utils.js", "js/contentscripts/clobberstorage.js", "js/contentscripts/fingerprinting.js" ], "run_at": "document_start", "matches": [ "<all_urls>" ], "all_frames": true, "match_about_blank": true }, { "js": [ "js/contentscripts/socialwidgets.js", "js/contentscripts/supercookie.js" ], "run_at": "document_idle", "matches": [ "<all_urls>" ], "all_frames": true, "match_about_blank": true } ], "host_permissions": [ "<all_urls>" ], "manifest_version": 3, "minimum_chrome_version": "121.0", "declarative_net_request": { "rule_resources": [ { "id": "dnt_policy_ruleset", "path": "data/dnr/dnt_policy.json", "enabled": true }, { "id": "google_gen204_ruleset", "path": "data/dnr/gen204.json", "enabled": true }, { "id": "google_redirect_ruleset", "path": "data/dnr/bypass_redirects.json", "enabled": true } ] }, "web_accessible_resources": [ { "matches": [ "<all_urls>" ], "resources": [ "data/web_accessible_resources/*" ], "use_dynamic_url": true } ], "browser_specific_settings": { "gecko": { "id": "jid1-MnnxcxisBPnSXQ@jetpack", "strict_min_version": "128.0" }, "gecko_android": { "strict_min_version": "128.0" } } }
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Detections
0Critical
0
High
0
Medium
0
Low
0
Has Verdicts
Yes
Manifest Findings
0Critical
0
High
0
Medium
0
Low
0
Secure Annex analyzed version: -