# stop-it v2, porn blocker, porn block

> Blocks adult content, phishing sites, scams, ads, and trackers automatically — no setup required. Free, open-source, and collects zero data. Works instantly on install. Ideal for families, schools, and shared devices.

Canonical page: [https://chrome-stats.com/d/stop-it](https://chrome-stats.com/d/stop-it)

## Overview

- **ID:** `stop-it`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** stop-it
- **Category:** privacy-security,search-tools,alerts-updates
- **Daily users:** 5
- **Weekly downloads:** 4
- **Rating:** 1.00 / 5 (1 ratings)
- **Version:** 5.25
- **Last updated:** 2026-07-16
- **First published:** 2026-06-16
- **Size:** 101 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/stop-it/)
- **Website:** [https://www.stop-it.be/](https://www.stop-it.be/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/stop-it/privacy/](https://addons.mozilla.org/firefox/addon/stop-it/privacy/)

## Description

Stop-it is a reliable Chrome extension designed to block pornographic content, scams, malware, and other dangerous sites, ensuring a safer internet experience. Trusted by thousands, it offers seamless protection without user intervention, making it ideal for homes, schools, and public spaces. Founded by Leonardo Sedevcic in 1998 and regularly updated through 2020, Stop-it remains a top choice for parental control and online security.

With Stop-it, users can browse confidently without exposure to unethical or harmful websites. Its no-configuration approach provides peace of mind by automatically filtering out dangerous content and cyber threats, promoting safer digital environments for all ages.

## Rankings

- #44,478 — Overall
- #75 — stop
- #183 — malware
- #193 — stock

## Permissions and access

### Permissions

- `alarms`
- `storage`
- `tabs`
- `webNavigation`
- `declarativeNetRequest`

### Host permissions

- `https://stop-it.be/*`
- `*://*.google.com/*`
- `*://*.bing.com/*`
- `*://*.yahoo.com/*`
- `*://*.duckduckgo.com/*`
- `*://*.youtube.com/*`
- `*://youtu.be/*`
- `*://search.brave.com/*`
- `*://*.qwant.com/*`
- `*://*.yandex.com/*`
- `*://*.ecosia.org/*`
- `*://*.baidu.com/*`
- `*://*.reddit.com/*`

### Content script matches

- `*.google.com`
- `*.bing.com`
- `*.qwant.com`
- `*.yahoo.com`
- `*.duckduckgo.com`
- `*.yandex.com`
- `*.ecosia.org`
- `*.baidu.com`
- `*.youtube.com`
- `youtu.be`
- `search.brave.com`
- `*.reddit.com`

## 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 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).

## Review summary

Users praise Stop‑it for reliably blocking adult content, enforcing SafeSearch, and being lightweight. Major complaints repeated across reviews: it blocks YouTube and other legitimate sites without a whitelist, lacks password protection (so children can disable it), and has inconsistent behavior for some users. Request for customization (site exceptions/whitelist) is a frequent theme.

### Pros

- Effectively blocks porn/NSFW content and filters search results
- Enables or enforces Google SafeSearch (including in private browsing)
- Works across languages and blocks foreign-language explicit searches
- Lightweight and easy to install, low memory usage

### Cons

- Blocks YouTube videos and comment sections unexpectedly with no way to whitelist YouTube
- No whitelist/customization to allow specific sites (e.g., gambling or trusted sites)
- No password or lock — easy for users to disable the add‑on
- Sometimes blocks legitimate non‑explicit sites (reports include Coinbase and other useful sites)
- Inconsistent behavior for some users — a few report it doesn’t work at all

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