# Scanner Blocker

> Blocks sites that try to scan your local device to see which applications are running.

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

## Overview

- **ID:** `scanner-blocker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Sam Macbeth
- **Category:** privacy-security
- **Daily users:** 2
- **Weekly downloads:** 1
- **Version:** 0.1
- **Last updated:** 2020-06-17
- **First published:** 2020-06-16
- **Size:** 10 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/scanner-blocker/)
- **Website:** [https://github.com/sammacbeth/scanner-blocker/issues](https://github.com/sammacbeth/scanner-blocker/issues)

## Description

Scanner Blocker is a Firefox add-on that blocks sites from scanning your local device to find out what software you have installed and prevents hackers from accessing private data on your system. Protect your privacy and secure your data with Scanner Blocker.

## Rankings

- #65,167 — Overall

## Permissions and access

### Permissions

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

## Safety

- **Risk impact:** Moderate 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/scanner-blocker)