What is Merge Windows?

Merge Windows focuses on combining separate Firefox windows into one organized browser window. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use Merge Windows?

Merge Windows is an open-source project built for firefox users who manage multiple browser windows.

Is Merge Windows free?

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

What platforms does Merge Windows run on?

Merge Windows runs on the web and embeddable surfaces.

Is Merge Windows still active?

Unverified. Merge Windows 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 Merge Windows?

Merge Windows is developed by Jonathan Kingston.

How long has Merge Windows been around?

Merge Windows first shipped in 2017.

Is Merge Windows open source?

Yes — Merge Windows is open source under the Open Source license.

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Merge Windows

Name: Merge Windows
Author: Jonathan Kingston

github.comBrowser DevTools & extensions

Merge Windows is an open-source Firefox extension that combines multiple browser windows into a single window. It is intended for users who want to organize tabs and reduce clutter while browsing.

Open SourceWebEmbeddable

Visit github.com

Overview

3 features

Merge Windows is a Browser DevTools & extensions project. It focuses on combining separate Firefox windows into one organized browser window. Merge Windows is an open-source project aimed at firefox users who manage multiple browser windows. The project is open source (Open Source). Merge Windows is available on the web and embeddable surfaces.

It is developed by Jonathan Kingston, and it first shipped in 2017. Among its 3 catalogued features are window merging, tab organization, and firefox integration.

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

Window merging
Tab organization
Firefox integration

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 · 10:47 UTC
Merge Windows verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Merge Windows

What is Merge Windows?: Merge Windows focuses on combining separate Firefox windows into one organized browser window. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Merge Windows?: Merge Windows is an open-source project built for firefox users who manage multiple browser windows.
Is Merge Windows free?: Yes — Merge Windows is open source under the Open Source license and free to use.
What platforms does Merge Windows run on?: Merge Windows runs on the web and embeddable surfaces.
Is Merge Windows still active?: Unverified. Merge Windows 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 Merge Windows?: Merge Windows is developed by Jonathan Kingston.
How long has Merge Windows been around?: Merge Windows first shipped in 2017.
Is Merge Windows open source?: Yes — Merge Windows 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 manage multiple browser windows
Model: Open source
Solves: Combining separate Firefox windows into one organized browser window.

Registered as

Firefox Add-ons: merge-window

Developer

Jonathan Kingston

Index record

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

Identity audit (13)

Slug: merge-windows-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/jonathanKingston/merge-windows

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