Who is NiftySplit (Port) for?

NiftySplit (Port) is a consumer product built for firefox users who want side-by-side browsing.

Is NiftySplit (Port) free?

Yes — NiftySplit (Port) is free to use.

What platforms does NiftySplit (Port) run on?

NiftySplit (Port) runs on the web and embeddable surfaces.

Is NiftySplit (Port) still active?

Unverified. NiftySplit (Port) 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 makes NiftySplit (Port)?

NiftySplit (Port) is developed by THFYM.

How long has NiftySplit (Port) been around?

NiftySplit (Port) first shipped in 2020.

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NiftySplit (Port)

Name: NiftySplit (Port)
Author: THFYM

mozilla.orgBrowser DevTools & extensions

NiftySplit (Port) is a Firefox extension that divides browsing between two windows, loading links clicked in the left window into the right window. It supports multi-monitor setups and configurable options for users who want to preserve their main page while exploring linked content.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

NiftySplit (Port) is a Browser DevTools & extensions project. It focuses on keeping a main webpage visible while opening and browsing its links in a separate window. It is built as a consumer product for firefox users who want side-by-side browsing. NiftySplit (Port) is free to use. It runs on the web and embeddable surfaces.

THFYM builds and maintains NiftySplit (Port), and it first shipped in 2020. Among its 5 catalogued features are split browser windows, linked-page loading, and multi-monitor support. The interface is available in 32 languages, including Czech, German, and Greek.

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

Split browser windows
Linked-page loading
Multi-monitor support
Configurable options
Reset defaults

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sep · 11:18 UTC
NiftySplit (Port) verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about NiftySplit (Port)

What does NiftySplit (Port) do?: NiftySplit (Port) focuses on keeping a main webpage visible while opening and browsing its links in a separate window. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is NiftySplit (Port) for?: NiftySplit (Port) is a consumer product built for firefox users who want side-by-side browsing.
Is NiftySplit (Port) free?: Yes — NiftySplit (Port) is free to use.
What platforms does NiftySplit (Port) run on?: NiftySplit (Port) runs on the web and embeddable surfaces.
Is NiftySplit (Port) still active?: Unverified. NiftySplit (Port) 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 makes NiftySplit (Port)?: NiftySplit (Port) is developed by THFYM.
How long has NiftySplit (Port) been around?: NiftySplit (Port) first shipped in 2020.
What languages does NiftySplit (Port) support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Free
Platforms: Web
First seen: 12 Sept 2026
Built for: Firefox users who want side-by-side browsing
Model: B2C
Solves: Keeping a main webpage visible while opening and browsing its links in a separate window.

Registered as

Firefox Add-ons: niftysplit-port

Developer

THFYM

Index record

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

Identity audit (13)

Slug: niftysplit-port-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/niftysplit-port

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