# FENSE Security

> A simple extension to easily block distracting websites and urls for Firefox.

Canonical page: [https://chrome-stats.com/d/fense-security-staging](https://chrome-stats.com/d/fense-security-staging)

## Overview

- **ID:** `fense-security-staging`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Pipeline
- **Category:** web-development,privacy-security
- **Version:** 1.0
- **Last updated:** 2021-02-05
- **First published:** 2021-02-04
- **Size:** 818 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/fense-security-staging/)

## Description

FENSE Security is a simple extension for Firefox, designed to help users block distracting websites and URLs. With FENSE Security, users can easily block specific websites or parts of websites, enhancing productivity and focus. This add-on works universally and blocks websites across different platforms, such as Facebook, Reddit, Twitter, and YouTube.

## Rankings

- #134,494 — Overall
- #193 — security

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `activeTab`
- `tabs`
- `notifications`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

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

## Similar extensions and apps

- [FENSE Security](https://chrome-stats.com/d/fense-security)
- [FENSE Security](https://chrome-stats.com/d/staging-fense-security)
- [Facebook URL Blocker](https://chrome-stats.com/d/facebook-url-blocker) — 3 users
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- [Simple Site Blocker](https://chrome-stats.com/d/simple-site-blocker) — 22 users, 4.50 / 5
- [Security Shield](https://chrome-stats.com/d/security-shield) — 1 users
- [Fox Web Security](https://chrome-stats.com/d/fox-web-security) — 276 users, 2.40 / 5
- [Distraction Blocker Extension](https://chrome-stats.com/d/distraction-blocker-extension)
- [Precision Site Blocker](https://chrome-stats.com/d/precision-site-blocker)
- [Distraction Sentry (Web Blocker)](https://chrome-stats.com/d/distraction-sentry-web-blocker) — 1 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/fense-security-staging)