# Resize Window & Viewport

> Resize browser window or viewport to desired screen widths. Firefox's Responsive Design Mode (Ctrl + Shift + M) is great for mobile devices emulation.

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

## Overview

- **ID:** `resize-window-viewport`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Moris Papasmadov
- **Category:** web-development,appearance
- **Daily users:** 784
- **Weekly downloads:** 3
- **Rating:** 3.29 / 5 (31 ratings)
- **Version:** 1.0.7resigned1
- **Last updated:** 2024-04-25
- **First published:** 2017-06-28
- **Size:** 16 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/resize-window-viewport/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/resize-window-viewport/privacy/](https://addons.mozilla.org/firefox/addon/resize-window-viewport/privacy/)

## Description

The **Resize Window & Viewport** Chrome extension offers a simple and effective way to resize your browser window or viewport to your desired screen widths. Ideal for web developers and designers, it enables quick testing of responsive layouts and device emulations without relying solely on built-in browser tools like Firefox's Responsive Design Mode. This extension streamlines the workflow for checking how websites appear on different screen sizes, improving productivity and design accuracy.

## Rankings

- #3,789 — Overall
- #5 — resize
- #63 — size
- #72 — resume
- #72 — windows
- #76 — sport

## Permissions and access

### Permissions

- `activeTab`
- `storage`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Low 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).

## Review summary

Users find the 'Resize Window & Viewport' add-on effective at quickly resizing window width with a simple interface. The Ctrl+Shift+M shortcut aids responsive design testing but does not work on Mac OS. Major limitations include inability to resize window height, lack of customization options for sizes, and issues with the window size resetting after page reloads. While functional and easy to use, users desire more flexibility and stability, especially for large screen sizes and saved custom dimensions.

### Pros

- Performs its stated function of resizing window width promptly and effectively.
- The Ctrl+Shift+M (responsive mode) feature is helpful for checking breakpoints.
- Simple and straightforward interface that is easy to use.
- Potential for improvements noted by users, reflecting active interest in the add-on.

### Cons

- Only resizes the width of the window and viewport, does not support height adjustments.
- Lacks customization options such as adding more sizes or custom dimensions.
- Ctrl+Shift+M shortcut does not work on Mac OS as expected.
- Does not 'stick' - sites reload and revert to full screen size, reducing usefulness.
- Inadequate support for larger screen sizes and multipoint dimensions.

## Similar extensions and apps

- [Resize Window](https://chrome-stats.com/d/resize-window-addon)
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- [Custom Window Resizer](https://chrome-stats.com/d/custom-window-resizer) — 35 users
- [View Responsive Layouts](https://chrome-stats.com/d/view-responsive-layouts)
- [ResizeFFWidth](https://chrome-stats.com/d/resizeffwidth)
- [Viewport Resizer Plus](https://chrome-stats.com/d/viewport-resizer-plus) — 33 users
- [Window Resizer HM](https://chrome-stats.com/d/window-resizer-hm)
- [responsivo](https://chrome-stats.com/d/responsivo) — 223 users, 5.00 / 5
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- [Display Window Size](https://chrome-stats.com/d/display-window-size) — 32 users, 3.00 / 5

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