Who is Efficiency Split Screen for?

Efficiency Split Screen is a consumer product built for firefox users who research and compare web pages.

Does Efficiency Split Screen have a free plan?

Yes — Efficiency Split Screen is free to use.

What platforms does Efficiency Split Screen run on?

Efficiency Split Screen runs on the web and embeddable surfaces.

Is Efficiency Split Screen still maintained?

Unverified. Efficiency Split Screen 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 are alternatives to Efficiency Split Screen?

Similar projects tracked by PulseGate include Split-Screen Browser Tool, Side by Side, and Multi Split View.

Who develops Efficiency Split Screen?

Efficiency Split Screen is developed by auto-subtitle.

When did Efficiency Split Screen launch?

Efficiency Split Screen first shipped in 2022.

Back to the index

Efficiency Split Screen

Name: Efficiency Split Screen
Author: auto-subtitle

mozilla.orgBrowser DevTools & extensions

Efficiency Split Screen is a Firefox extension that displays multiple browser windows side by side and opens clicked links in another window. It helps users keep search results visible while reviewing linked pages without repeatedly switching tabs or navigating back.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Efficiency Split Screen sits in PulseGate's Browser DevTools & extensions category. It focuses on switching between search results and linked pages while researching in Firefox. It is built as a consumer product for firefox users who research and compare web pages. Efficiency Split Screen costs nothing to use. Efficiency Split Screen is available on the web and embeddable surfaces.

auto-subtitle builds and maintains Efficiency Split Screen, and it first shipped in 2022. Key capabilities include split-screen view, multiple windows, and link redirection. 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-screen view
Multiple windows
Link redirection
Keyboard shortcuts
Tab control

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

Indexed10 Sep · 08:44 UTC
Efficiency Split Screen verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Efficiency Split Screen

What is Efficiency Split Screen?: Efficiency Split Screen focuses on switching between search results and linked pages while researching in Firefox. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Efficiency Split Screen for?: Efficiency Split Screen is a consumer product built for firefox users who research and compare web pages.
Does Efficiency Split Screen have a free plan?: Yes — Efficiency Split Screen is free to use.
What platforms does Efficiency Split Screen run on?: Efficiency Split Screen runs on the web and embeddable surfaces.
Is Efficiency Split Screen still maintained?: Unverified. Efficiency Split Screen 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 are alternatives to Efficiency Split Screen?: Similar projects tracked by PulseGate include Split-Screen Browser Tool, Side by Side, and Multi Split View.Split-Screen Browser Tool Side by Side Multi Split View
Who develops Efficiency Split Screen?: Efficiency Split Screen is developed by auto-subtitle.
When did Efficiency Split Screen launch?: Efficiency Split Screen first shipped in 2022.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who research and compare web pages
Model: B2C
Solves: Switching between search results and linked pages while researching in Firefox.

Registered as

Firefox Add-ons: efficiency-split-screen

Developer

auto-subtitle

Index record

Indexed: 10 Sep 2026
Lifecycle: Alive
Last seen: 10 Sep 2026

Identity audit (13)

Slug: efficiency-split-screen-mozilla-org
Lifecycle state recorded: 10 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
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: 10 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/efficiency-split-screen

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