# CMC Online Security

> chặn các website độc hại bằng url hoặc keyword

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

## Overview

- **ID:** `cmc-online-security`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** CMC Cyber Security
- **Category:** privacy-security
- **Daily users:** 3
- **Version:** 0.12
- **Last updated:** 2022-01-19
- **First published:** 2021-08-24
- **Size:** 55 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cmc-online-security/)

## Description

CMC Online Security is a Firefox add-on that helps users block access to malicious websites defined by the administrator. It works in conjunction with CMC antivirus software.

## Rankings

- #57,488 — Overall
- #73 — security
- #211 — online

## Permissions and access

### Permissions

- `nativeMessaging`
- `storage`

### Content script matches

- `*`

## 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/cmc-online-security)