Window Resizer

Name: Window Resizer
Rating: 2.9167 (36 reviews)
Author: Kelvin

By: Kelvin

Easily set the layout (size & position) of your browser window

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Features & Capabilities

Window Resizer is a handy Chrome extension that lets you easily adjust your browser window's size and position. Access a convenient toolbar popup to select from 20 predefined layouts tailored for different screen setups.

If preset options don't meet your needs, you can create and save custom layouts via an intuitive design interface. Drag and drop icons in the popup to reorder your layouts, with changes automatically saved. Perfect for developers, designers, or anyone who frequently adjusts window dimensions for multitasking or testing.

User Growth & Download Statistics

Add-on

By:

Kelvin

Daily users:

4,555 12

Rating:

2.92

(36)

Version:

0.1.9 Last updated: 2026-06-07

Version code:

6295558

Creation date:

2017-09-18

Risk:

Permissions:

storage

Size:

57.59KB

Email:

ke*****@yahoo.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-21

Compare stats and ranking:

Ranking

# 1,265 ▲ 10

Other rankings

#105 in Tabs ▲ 1

#197 in Appearance ▲ 1

#206 in Photos, Music & Videos ▲ 2

#3 in resize keyword 33

#11 in windows keyword 40

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Other platforms

Resize Browser Window (v0.1.6)

2,102 3.00

(1)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Kelvin

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/window-resizer-webextension/

Email:

ke*****@yahoo.com

Website:

https://mybrowseraddon.com/window-resizer.html

Permission Change History

2025-07-12: Version 0.1.7 → 0.1.8

Remove Permissions: system.display

User Reviews

Window Resizer can resize the Firefox window to specific dimensions and may help test how sites render at particular resolutions. However, it suffers from reliability and usability issues: it often doesn’t work in private windows or on some Firefox versions; presets and UI behave poorly (defaults reappear, duplicates appear, and interaction is mouse-only with no clear toolbar icon); creating new sizes is error-prone; and resizing the window does not always affect the page content as some users expect. Overall, the functionality exists but is inconsistent and frustrating.

Pros

Resizes the Firefox window to specified dimensions (functionality observed when it works).
Can be used to spoof website rendering by presenting a chosen window size to sites.
Provides preset window sizes out of the box.

Cons

Often unusable: doesn’t work in private windows and may fail on some Firefox versions.
UI is mouse-dependent with no visible toolbar icon or keyboard navigation.
Presets frequently reappear after deletion and new presets can auto-add unwanted items.
Creating new window sizes is error-prone with duplicates or deletions; defaults reappear.
Resizing the window does not necessarily affect the page content, which may not meet some users' needs.

Recent reviews

Only works on normal windows, doesn't work on private windows. It auto-populates with a lot of presets I don't care. When saving new presets, it auto-adds a bunch of stuff I just deleted. It requires using a mouse, I cannot use keyboard to navigate and interact with the extension. Overall, it feels poorly coded and lacks polish.

by De*****, 2026-03-10

KNOCK-KNOCK, HELLO? IF we can install it, why can't we use it? Rather senseless to host it for download if it's unusable.

by fm*****, 2026-01-10

It's difficult to create new window sizes. Sometimes it creates two instead of one, and other times it just deletes them. Plus, even after removing the default ones, they keep reappearing automatically.

by *****, 2025-07-11

View all user reviews ›

Is Window Resizer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Window Resizer does not require any sensitive permissions.

Risk impact analysis details

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Window Resizer may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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