# Browser extensions privacy ratings

Extensions that add privacy and security features to a browser.

| Name | Grade | Jurisdiction | Description |
| --- | --- | --- | --- |
| [CanvasBlocker](https://privacyratings.com/browser-extensions/canvasblocker/) | B (80/100) | Unknown | Firefox extension that blocks or fakes the output of canvas and other JavaScript APIs that websites use for browser fingerprinting. |
| [Chameleon](https://privacyratings.com/browser-extensions/chameleon/) | B (80/100) | Unknown | Browser extension that spoofs the user agent, screen size, time zone, language and other browser properties, and can apply privacy-related Firefox settings to reduce fingerprinting. |
| [ClearURLs](https://privacyratings.com/browser-extensions/clearurls/) | B (80/100) | Unknown | Browser extension that removes tracking parameters from URLs and skips tracking redirects using a public rule list. |
| [Consent-O-Matic](https://privacyratings.com/browser-extensions/consent-o-matic/) | B (80/100) | Denmark (Nine Eyes) | Browser extension from Aarhus University that detects cookie consent pop-ups from common consent management platforms and fills them in automatically according to the user's preferences. |
| [Cookie AutoDelete](https://privacyratings.com/browser-extensions/cookie-autodelete/) | B (80/100) | Unknown | Browser extension that deletes cookies and other site data from closed tabs automatically, keeping data only for sites on a user-defined allow list. |
| [DeArrow](https://privacyratings.com/browser-extensions/dearrow/) | B (80/100) | Unknown | Crowdsourced browser extension that replaces YouTube video titles and thumbnails with community-submitted versions to reduce clickbait. |
| [Decentraleyes](https://privacyratings.com/browser-extensions/decentraleyes/) | B (80/100) | Unknown | Browser extension that serves common JavaScript libraries from local copies instead of third-party content delivery networks, reducing tracking by those CDNs. |
| [Facebook Container](https://privacyratings.com/browser-extensions/facebook-container/) | B (80/100) | United States (Five Eyes) | Firefox extension from Mozilla that isolates Facebook, Instagram and Messenger in a separate container so that Facebook cannot easily link activity on other websites to the user's account. |
| [Firefox Multi-Account Containers](https://privacyratings.com/browser-extensions/firefox-multi-account-containers/) | B (80/100) | United States (Five Eyes) | Mozilla add-on for Firefox that separates sites into color-coded container tabs with isolated cookies and storage. |
| [I Still Don't Care About Cookies](https://privacyratings.com/browser-extensions/i-still-dont-care-about-cookies/) | B (80/100) | Unknown | Community-maintained fork of I Don't Care About Cookies, a browser extension that hides or dismisses cookie consent banners on websites. |
| [JShelter](https://privacyratings.com/browser-extensions/jshelter/) | B (80/100) | Unknown | Browser extension that limits what JavaScript on web pages can access, such as precise geolocation, timing and fingerprinting-prone APIs, and warns about sites that try to fingerprint the browser. |
| [LibRedirect](https://privacyratings.com/browser-extensions/libredirect/) | B (80/100) | Unknown | Browser extension that redirects sites such as YouTube, Reddit and Twitter to alternative frontends. |
| [Linguist](https://privacyratings.com/browser-extensions/linguist/) | B (80/100) | Unknown | Browser extension for translating web pages and text, with an offline translator and support for custom or self-hosted translation services. |
| [LocalCDN](https://privacyratings.com/browser-extensions/localcdn/) | B (80/100) | Unknown | Browser extension that emulates common web frameworks such as jQuery and Bootstrap from local copies, blocking requests to third-party CDNs. |
| [NoScript](https://privacyratings.com/browser-extensions/noscript/) | B (80/100) | Unknown | Browser extension for Firefox and Chromium-based browsers that blocks JavaScript and other active content except on sites the user allows, with added protection against cross-site scripting and clickjacking. |
| [Privacy Badger](https://privacyratings.com/browser-extensions/privacy-badger/) | B (80/100) | United States (Five Eyes) | Browser extension from the Electronic Frontier Foundation that learns to block invisible third-party trackers based on their behavior and sends Global Privacy Control signals. |
| [Privacy-Oriented Origin Policy](https://privacyratings.com/browser-extensions/privacy-oriented-origin-policy/) | B (80/100) | Unknown | Firefox extension that strips Origin headers from cross-origin requests where they are least likely to be needed, to limit information sent to third parties. |
| [PrivacySpy](https://privacyratings.com/browser-extensions/privacyspy/) | B (80/100) | Unknown | Companion extension for PrivacySpy, an open project that rates and annotates privacy policies; it shows the PrivacySpy score for the current website. |
| [Skip Redirect](https://privacyratings.com/browser-extensions/skip-redirect/) | B (80/100) | Unknown | Browser extension that detects intermediary redirect pages, extracts the final URL and goes there directly. |
| [Terms of Service; Didn't Read](https://privacyratings.com/browser-extensions/tosdr/) | B (80/100) | Unknown | Browser extension from the ToS;DR project that shows grades and summaries of a website's terms of service and privacy policy, written and reviewed by volunteer contributors. |
| [Web Archives](https://privacyratings.com/browser-extensions/web-archives/) | B (80/100) | Unknown | Browser extension that looks up archived and cached copies of the current page on services such as the Wayback Machine and Archive.today. |
| [WebRTC-Leak-Prevent](https://privacyratings.com/browser-extensions/webrtc-leak-prevent/) | B (80/100) | Unknown | Chromium extension that changes WebRTC privacy settings to stop WebRTC from exposing local and public IP addresses. |
| [SponsorBlock](https://privacyratings.com/browser-extensions/sponsorblock/) | C (65/100) | Unknown | Crowdsourced browser extension that skips sponsored segments and other unwanted parts of YouTube videos using community-submitted timestamps. |
| [AmIUnique Timeline](https://privacyratings.com/browser-extensions/amiunique-timeline/) | D (50/100) | France (Nine Eyes) | Research extension from the AmIUnique project that periodically records the browser's fingerprint so users can see how it changes over time. |
| [Flagfox](https://privacyratings.com/browser-extensions/flagfox/) | D (40/100) | Unknown | Firefox extension that shows a flag for the country where the current website's server is located, with shortcuts to lookup tools such as whois and site checks. |
| [Privacy Essentials](https://privacyratings.com/browser-extensions/privacy-essentials/) | D (40/100) | United States (Five Eyes) | DuckDuckGo browser extension that blocks trackers, upgrades connections to HTTPS and sets DuckDuckGo as the search engine. |
| [Canvas Fingerprint Blocker](https://privacyratings.com/browser-extensions/canvas-fingerprint-blocker/) | F (30/100) | Unknown | Browser extension that adds noise to HTML5 canvas output to resist canvas fingerprinting without disabling the canvas element. |
| [Netcraft Extension](https://privacyratings.com/browser-extensions/netcraft-extension/) | F (20/100) | United Kingdom (Five Eyes) | Anti-phishing browser extension from Netcraft that warns about known and suspected phishing sites and malicious JavaScript, and shows basic information about the current site. |

## Criteria

- **Open source** (weight 3): Is all the source code needed to run the product public?
- **No trackers or telemetry** (weight 3): Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
- **No ads or data sales** (weight 2): Is the product funded without advertising, ad targeting or selling user data?
- **Independent audit** (weight 2): Has an independent security or privacy audit been published within the last three years?

Source: https://privacyratings.com/browser-extensions/