# Device Viewport Tester

> Test website viewports on different mobile devices with this utility, allowing users to verify how websites adapt to different screen sizes and orientations.

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

## Overview

- **ID:** `device-viewport-tester`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Xanthe Pearson
- **Category:** alerts-updates
- **Daily users:** 3
- **Version:** 1.0
- **Last updated:** 2023-08-21
- **First published:** 2023-08-21
- **Size:** 13 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/device-viewport-tester/)
- **Website:** [https://rik.city](https://rik.city/)

## Description

Elevate your mobile website development with the Mobile View Tester extension. Tailored for developers, this indispensable tool enables you to assess your website's compatibility across popular mobile phone views.

From iPhone X to Galaxy S10 and beyond, fine-tune your design and deliver a visually appealing experience on different mobile devices.

## Rankings

- #54,948 — Overall
- #23 — device

## Safety

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

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- 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

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- [Mobile Viewer](https://chrome-stats.com/d/mobile-viewer) — 128 users
- [Mobile Compatibility Tester](https://chrome-stats.com/d/mobile-compatibility-tester)
- [Mobile Screen Simulator](https://chrome-stats.com/d/mobile-screen-simulator) — 121 users, 1.00 / 5
- [DeviceView Inspector](https://chrome-stats.com/d/deviceview-inspector)
- [DeviceTest Wizard](https://chrome-stats.com/d/devicetest-wizard)
- [Mobile Screen Tester](https://chrome-stats.com/d/mobile-screen-tester) — 1 users
- [DeviceTest Pro](https://chrome-stats.com/d/devicetest-pro)
- [Mobile View Tester](https://chrome-stats.com/d/mobile-view-tester) — 345 users, 3.00 / 5
- [Mobile Device Tester](https://chrome-stats.com/d/mobile-device-tester) — 5 users
- [Mobile Screen Tester Pro](https://chrome-stats.com/d/mobile-screen-tester-pro) — 1 users
- [Mobile Design Analyzer](https://chrome-stats.com/d/mobile-design-analyzer) — 2 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/device-viewport-tester)