# AdguardTeam/AdguardBrowserExtension

AdGuard browser extension

Repository: https://github.com/AdguardTeam/AdguardBrowserExtension
Canonical: https://ross.abutalabs.com/products/adguardbrowserextension
Homepage: https://adguard.com/
Language: TypeScript
License: GPL-3.0
License Family: copyleft
Topics: adguard, adblock, privacy, javascript, chrome, firefox, open-source
Last push: 2026-08-26T21:36:05+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 4193, "days_push": 7, "days_rel": 7, "gap_med": 7, "n_releases_24m": 48}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4357, forks 447 (observed 2026-08-28T04:08:46.442905+00:00)

## What it is
AdGuard Browser Extension is a free, open-source ad blocker for Chrome, Firefox, Opera, Edge, and other Chromium-based browsers. It blocks ads, popups, trackers, and malware/phishing domains using large filter lists and advanced privacy protection features.

## Use cases
- block ads on youtube and facebook
- block trackers and protect my privacy while browsing
- remove popups and banners from web pages
- speed up page loading by blocking ads
- block social media widgets and cookie notices
- protect against malware and phishing sites
- create custom filtering rules with an element picker

## When to choose
- you want a free, open-source ad blocker across Chrome, Firefox, Edge, and Opera
- you need strong tracker blocking with large filter lists
- you want anti-adblock circumvention and custom rule support
- you prefer a lightweight extension with low memory usage

## When to avoid
- you need system-wide ad blocking outside the browser (use AdGuard Home or desktop apps)
- you need Safari-specific blocking (AdGuard Mini is a separate product)
- you want a fully self-contained solution without trusting a vendor's filter updates

## Facets
- artifact type: plugin
- maturity: active
- function: security, privacy, browser-extension
- domain: privacy, security, browser-extensions, web-development
- platform: browser, browser-extension, cross-platform
- tags: adblock, ad-blocking, tracker-blocking, content-blocker, filter-lists, chrome, firefox, edge, opera, typescript

## Member repositories
- AdguardTeam/AdguardBrowserExtension (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:46.442905+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:28.996907+00:00, confidence not recorded.
  - readme: https://github.com/AdguardTeam/AdguardBrowserExtension (fetched 2026-08-28T04:08:46.442905+00:00, sha 7ba3a5613c19)
  - homepage: https://adguard.com/ (fetched 2026-08-29T09:10:24.413311+00:00, sha 9b55a296106f)
  - site_page: https://adguard.com/en/download-extension/safari.html (fetched 2026-08-29T09:10:24.435275+00:00, sha 75f563d282e2)
  - site_page: https://adguard.com/en/press-releases.html (fetched 2026-08-29T09:10:24.437497+00:00, sha 4d63ddde01fe)
  - site_page: https://adguard.com/en/adguard-linux/overview.html (fetched 2026-08-29T09:10:24.423051+00:00, sha 91d9abc2e1e7)
  - site_page: https://adguard.com/en/download-extension/chrome.html (fetched 2026-08-29T09:10:24.425114+00:00, sha c83eb11d4008)
  - site_page: https://adguard.com/en/download-extension/firefox.html (fetched 2026-08-29T09:10:24.426778+00:00, sha 2dcb6b5e92c6)
  - site_page: https://adguard.com/en/download-extension/edge.html (fetched 2026-08-29T09:10:24.429444+00:00, sha a7589eed0fe0)
  - site_page: https://adguard.com/en/download-extension/opera.html (fetched 2026-08-29T09:10:24.431667+00:00, sha 9248bd39e0d9)
  - site_page: https://adguard.com/en/download-extension/yandex.html (fetched 2026-08-29T09:10:24.433602+00:00, sha c83eb11d4008)
- Data as of 2026-08-30T08:39:29.467469+00:00.