# Custom Window Resizer

> Quickly resize and reposition your browser window to predefined dimensions with a single click.

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

## Overview

- **ID:** `custom-window-resizer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** GenXJay
- **Category:** appearance
- **Daily users:** 36
- **Weekly downloads:** 3
- **Version:** 3.0
- **Last updated:** 2026-02-24
- **First published:** 2025-04-19
- **Size:** 60 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/custom-window-resizer/)
- **Website:** [https://jasonstum.com](https://jasonstum.com/)

## Description

Window Resizer lets you create custom presets to instantly resize and reposition your Firefox browser window.

Whether you're a designer testing responsive layouts, a multitasker organizing your screen, or just someone who wants windows in the right place every time — this extension has you covered.

💡 <strong>Features:</strong>
<ul><li>Define custom width, height, left, and top values</li><li>Drag-and-drop to reorder presets</li><li>Save and edit unlimited configurations</li><li>Import/export settings for backup or sharing</li><li>Works with multiple monitors and window arrangements</li><li><strong>Tab Explosion:</strong> Instantly split all tabs from your current window into a visually organized layout of separate windows. Layouts are optimized for 2, 3, 4, or 5 tabs, making multitasking and comparison effortless.</li><li><strong>Gather Tabs:</strong> Quickly gather all tabs from all open windows back into a single window, automatically applying your favorite preset for size and position.</li></ul>
Stay organized. Stay productive. Resize smarter.

## Rankings

- #18,862 — Overall
- #21 — resize
- #27 — customize
- #101 — custom feed
- #102 — custom font
- #107 — size

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `scripting`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/custom-window-resizer)