Who is WindowSizer for?

WindowSizer is an open-source project built for firefox users who frequently arrange browser windows.

Does WindowSizer have a free plan?

Yes — WindowSizer is open source under the Open Source license and free to use.

What platforms does WindowSizer run on?

WindowSizer runs on the web and embeddable surfaces.

Is WindowSizer still maintained?

Unverified. WindowSizer 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.

Who develops WindowSizer?

WindowSizer is developed by drcheap.

How long has WindowSizer been around?

WindowSizer first shipped in 2017.

Is WindowSizer open source?

Yes — WindowSizer is open source under the Open Source license.

Back to the index

WindowSizer

Name: WindowSizer
Author: drcheap

github.comInfrastructure

WindowSizer is an open-source WebExtension that lets users resize a browser window to one of their favorite saved dimensions. It is intended for Firefox users who need repeatable browser window layouts.

Open SourceWebEmbeddable

Visit github.com

Overview

4 features

WindowSizer is a Browser DevTools & extensions project. It focuses on resizing browser windows to preferred dimensions without manually entering window sizes. WindowSizer is an open-source project aimed at firefox users who frequently arrange browser windows. The project is open source (Open Source). WindowSizer is available on the web and embeddable surfaces.

It is developed by drcheap, and it first shipped in 2017. Among its 4 catalogued features are saved window sizes, quick resizing, and browser extension.

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

Saved window sizes
Quick resizing
Browser extension
Firefox support

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 19:24 UTC
WindowSizer verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about WindowSizer

What does WindowSizer do?: WindowSizer focuses on resizing browser windows to preferred dimensions without manually entering window sizes. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is WindowSizer for?: WindowSizer is an open-source project built for firefox users who frequently arrange browser windows.
Does WindowSizer have a free plan?: Yes — WindowSizer is open source under the Open Source license and free to use.
What platforms does WindowSizer run on?: WindowSizer runs on the web and embeddable surfaces.
Is WindowSizer still maintained?: Unverified. WindowSizer 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.
Who develops WindowSizer?: WindowSizer is developed by drcheap.
How long has WindowSizer been around?: WindowSizer first shipped in 2017.
Is WindowSizer open source?: Yes — WindowSizer is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 8 Sept 2026
Built for: Firefox users who frequently arrange browser windows
Model: Open source
Solves: Resizing browser windows to preferred dimensions without manually entering window sizes.

Registered as

Firefox Add-ons: windowsizer

Developer

drcheap

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (13)

Slug: windowsizer-github-com
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
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: 8 Sept 2026
Canonical URL: https://github.com/drcheap/WindowSizer

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