# Ads and tracker blocker

> This extension blocks ads on web pages by using a blocklist fetched from a specified URL. It uses the webRequest API to intercept and cancel requests that match the rules in the blocklist. The number of blocked requests is displayed on the extension

Canonical page: [https://chrome-stats.com/d/ads-and-tracker-blocker](https://chrome-stats.com/d/ads-and-tracker-blocker)

## Overview

- **ID:** `ads-and-tracker-blocker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Gagandeep
- **Category:** web-development,privacy-security,other
- **Version:** 1.0
- **Last updated:** 2023-04-24
- **First published:** 2023-04-23
- **Size:** 9.98 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ads-and-tracker-blocker/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/ads-and-tracker-blocker/privacy/](https://addons.mozilla.org/firefox/addon/ads-and-tracker-blocker/privacy/)

## Description

Ads and tracker blocker is a Firefox add-on that blocks ads on web pages by using a blocklist fetched from a specified URL. It intercepts and cancels requests that match the rules in the blocklist, displaying the number of blocked requests.

## Rankings

- #137,855 — Overall

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `https://big.oisd.nl/*`
- `<all_urls>`
- `webNavigation`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions 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).

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Source: [Chrome-Stats](https://chrome-stats.com/d/ads-and-tracker-blocker)