# ValidateX - HTML & XML Validator

> Validates HTML and XML markup against W3C standards

Canonical page: [https://chrome-stats.com/d/validatex-html-xml-validator](https://chrome-stats.com/d/validatex-html-xml-validator)

## Overview

- **ID:** `validatex-html-xml-validator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Nhà Cái Uy Tín
- **Category:** web-development,language-support
- **Daily users:** 4
- **Weekly downloads:** 1
- **Version:** 1.0
- **Last updated:** 2024-09-12
- **First published:** 2024-09-11
- **Size:** 19 KB
- **Data as of:** 2026-09-15
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/validatex-html-xml-validator/)

## Description

HTML validation against W3C standards
XML validation against W3C standards
Saving validation results
Loading saved validation results

## Rankings

- #51,033 — Overall
- #115 — html

## Permissions and access

### Permissions

- `activeTab`
- `storage`

### Content script matches

- `<all_urls>`

## 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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- [HTML Valid](https://chrome-stats.com/d/html-valid)

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Source: [Chrome-Stats](https://chrome-stats.com/d/validatex-html-xml-validator)