# Adjust Viewport Size

> Resize window adjusts to viewport. ブラウザの表示部分に合わせてウインドウの大きさを変更できます。

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

## Overview

- **ID:** `adjust-viewport-size`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** FullStackChoreman
- **Category:** web-development
- **Daily users:** 142
- **Weekly downloads:** 4
- **Rating:** 4.91 / 5 (11 ratings)
- **Version:** 1.0.1resigned1
- **Last updated:** 2024-04-26
- **First published:** 2019-02-10
- **Size:** 127 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/adjust-viewport-size/)

## Description

The Adjust Viewport Size Chrome extension enables users to resize their browser window to match the viewport size perfectly. This helps developers and designers test responsive layouts efficiently. Key features include a sortable preset list powered by Sortable.js, allowing quick switching between common viewport sizes. Users can utilize a convenient hotkey (Alt+Shift+n or Option+Shift+n) to resize instantly, with automatic detection of scrollbar thickness to ensure accuracy.

The extension displays current viewport information and supports exporting and importing presets as JSON files through the options page. Notably, it requires no special permissions, ensuring privacy and security for users. Adjust Viewport Size is ideal for web professionals seeking precise control over browser dimensions during development and testing.

## Rankings

- #9,795 — Overall
- #28 — size
- #111 — resize
- #127 — sport

## Permissions and access

### Permissions

- `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).

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