# Adblock

> Adblock: A lightweight, permissionless and user-friendly ad blocker for ads, trackers and malware.

Canonical page: [https://chrome-stats.com/d/sand-adblock](https://chrome-stats.com/d/sand-adblock)

## Overview

- **ID:** `sand-adblock`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** SandVPN
- **Category:** privacy-security
- **Daily users:** 5,387
- **Weekly downloads:** 988
- **Rating:** 4.50 / 5 (4 ratings)
- **Version:** 1.2.0
- **Last updated:** 2026-08-19
- **First published:** 2026-07-27
- **Size:** 174 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/sand-adblock/)

## Description

Adblock blocks ads and trackers before they are even requested.

WHY IT'S FAST
A static network filtering engine indexes every filter under its most
discriminating token, so out of 120,000+ filters, only a handful are ever
evaluated per request. Average matching latency: ~11 microseconds.

WHAT IT BLOCKS
• Ad and tracker network requests (EasyList, EasyPrivacy, uAssets, Liste FR)
• Ad placeholders, via CSS element hiding
• YouTube video ads, via scriptlets that strip ad metadata from the player
• Tracking parameters in URLs (fbclid, gclid, utm_*, and 120 more)

BUILT NOT TO BREAK SITES
Cosmetic rules are validated before use: any selector able to reach the
document root or match arbitrary elements is rejected. Generic rules are
served on demand, based on the classes actually present in the page,
instead of being dumped wholesale onto every site.

PRIVACY
No accounts, no analytics, no telemetry, no data collection of any kind.
Everything runs locally on your device.

## Rankings

- #1,123 — Overall
- #234 — Privacy & Security
- #2 — adblock
- #17 — writer's block
- #18 — adblocker
- #23 — block ads

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `webNavigation`
- `storage`
- `unlimitedStorage`
- `alarms`
- `tabs`
- `<all_urls>`

### Content script matches

- `*`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Adblocker Zero](https://chrome-stats.com/d/adblocker-zero) — 13 users, 5.00 / 5
- [u-Blocker Lite: Fast & Private Ad Blocker](https://chrome-stats.com/d/u-blocker-lite) — 2 users
- [Natt ADBlocker](https://chrome-stats.com/d/natt-adblocker) — 9 users, 2.33 / 5
- [Just Ad Blocker](https://chrome-stats.com/d/just-ad-blocker) — 1 users
- [ATO Blocker](https://chrome-stats.com/d/ato-blocker) — 1 users, 5.00 / 5
- [Ad Blocker Pro - AdWall](https://chrome-stats.com/d/ad-blocker-pro-adwall) — 5 users, 5.00 / 5
- [Adblock](https://chrome-stats.com/d/adblock-plus-plus)
- [UltraBlock - Ultimate AdBlocker](https://chrome-stats.com/d/ultrablock-ultimate-adblocker) — 6 users
- [Adblock Lite](https://chrome-stats.com/d/get-ublock-lite) — 1,109 users, 5.00 / 5
- [Adblock Lite](https://chrome-stats.com/d/get-adblock-lite) — 1,109 users, 5.00 / 5
- [Adaptive Ad Blocker Smart Shield](https://chrome-stats.com/d/adaptive-ad-blocker)
- [Ultimate AdBlocker](https://chrome-stats.com/d/ultimate-adblocker) — 72 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/sand-adblock)