# Mobile Friendly Viewport Tester

> Mobile Friendly Viewport Tester tool for efficient performance.

Canonical page: [https://chrome-stats.com/d/mobile-friendly-viewport](https://chrome-stats.com/d/mobile-friendly-viewport)

## Overview

- **ID:** `mobile-friendly-viewport`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** mobile friendly
- **Category:** other
- **Daily users:** 1
- **Version:** 1.0
- **Last updated:** 2026-05-16
- **First published:** 2026-05-13
- **Size:** 10 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/mobile-friendly-viewport/)
- **Website:** [https://7mcn.ink/](https://7mcn.ink/)

## Description

Mobile Friendly Viewport Tester is a lightweight Firefox extension created for developers, UI designers, and SEO professionals who need to quickly evaluate mobile viewport behavior on modern websites. The extension helps identify responsive layout issues and viewport inconsistencies directly inside the browser without requiring external testing platforms.

Modern search engines prioritize mobile usability and responsive performance. This tool allows users to instantly inspect viewport settings, screen adaptation behavior, and mobile rendering compatibility while browsing webpages. It simplifies responsive testing workflows and helps improve mobile optimization for better usability and search visibility.

## Rankings

- #116,914 — Overall
- #101 — mobile view
- #162 — mobile

## Permissions and access

### Permissions

- `activeTab`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- 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/mobile-friendly-viewport)