Who should use Window Resize?

Window Resize is a consumer product built for firefox users and web developers testing responsive layouts.

Is Window Resize free?

Yes — Window Resize is free to use.

What platforms does Window Resize run on?

Window Resize runs on the web and embeddable surfaces.

Is Window Resize still maintained?

Unverified. Window Resize has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Window Resize?

Similar projects tracked by PulseGate include Window Resizer, Window Resizer, and Resize Window & Viewport.

Who makes Window Resize?

Window Resize is developed by adi291.

How long has Window Resize been around?

Window Resize first shipped in 2014.

Back to the index

Window Resize

Name: Window Resize
Author: adi291

mozilla.orgBrowser DevTools & extensions

Window Resize is a Firefox browser extension that changes the browser window to predefined dimensions. Users can resize windows to customizable sizes, making it useful for responsive design testing and consistent browsing layouts.

FreeMITWebEmbeddable

Visit mozilla.org

1star

2forks

2alternatives

4features

2014since

Overview

4 features

Window Resize sits in PulseGate's Browser DevTools & extensions category. It focuses on resizing browser windows to consistent, predefined dimensions for testing and browsing workflows. Window Resize is a consumer product aimed at firefox users and web developers testing responsive layouts. Window Resize is free to use. It runs on the web and embeddable surfaces.

Behind Window Resize is adi291, and it first shipped in 2014. Key capabilities include preset dimensions, custom dimensions, and browser window resizing. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Preset dimensions
Custom dimensions
Browser window resizing
Firefox WebExtension

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

MIT

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierGitHub · ★ 1Multi-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sep · 23:31 UTC
Window Resize verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Window Resize

What is Window Resize?: Window Resize focuses on resizing browser windows to consistent, predefined dimensions for testing and browsing workflows. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Window Resize?: Window Resize is a consumer product built for firefox users and web developers testing responsive layouts.
Is Window Resize free?: Yes — Window Resize is free to use.
What platforms does Window Resize run on?: Window Resize runs on the web and embeddable surfaces.
Is Window Resize still maintained?: Unverified. Window Resize has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Window Resize?: Similar projects tracked by PulseGate include Window Resizer, Window Resizer, and Resize Window & Viewport.Window Resizer Window Resizer Resize Window & Viewport
Who makes Window Resize?: Window Resize is developed by adi291.
How long has Window Resize been around?: Window Resize first shipped in 2014.

At a glance

Pricing: Free
Platforms: Web
Open source: Yes · ★ 1
License: MIT
First seen: 12 Sept 2026
Built for: Firefox users and web developers testing responsive layouts
Model: B2C
Solves: Resizing browser windows to consistent, predefined dimensions for testing and browsing workflows.

Registered as

GitHub: justindarc/firesize
Firefox Add-ons: window-resize

Developer

adi291

Solo developer

GitHub

Open source

View on GitHub

Stars: 1
Forks: 2
Open issues: 1
Last commit: 15 Apr 2016
Commits 90d: 0
Contributors: 1
Authorship: Solo
Default branch: master
Latest release: v0.4.1 · 15 Apr 2016

Index record

Indexed: 12 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 12 Sep 2026

Identity audit (13)

Slug: window-resize-mozilla-org
Lifecycle state recorded: 12 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 12 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/window-resize

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