What does Ultrawidey do?

Ultrawidey focuses on removing black bars and fitting streaming videos to ultrawide displays. It is catalogued under Video & media players on PulseGate.

Who is Ultrawidey for?

Ultrawidey is a consumer product built for firefox users with ultrawide monitors.

Yes — Ultrawidey is free to use.

What platforms does Ultrawidey run on?

Ultrawidey runs on the web and embeddable surfaces.

Is Ultrawidey still maintained?

Unverified. Ultrawidey 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 Ultrawidey?

Similar projects tracked by PulseGate include UltraWide Video 21:9, Ultrawidify, and UltraWide YouTube.

Who develops Ultrawidey?

Ultrawidey is developed by StarChap.

When did Ultrawidey launch?

Ultrawidey first shipped in 2017.

Back to the index

Ultrawidey

Name: Ultrawidey
Author: StarChap

mozilla.orgVideo & media players

Ultrawidey is a Firefox browser extension that automatically adjusts videos on services such as YouTube and Netflix to fit 21:9 displays. It can remove black borders and includes keyboard shortcuts to force the ultrawide aspect ratio when needed.

FreeWebEmbeddable

Visit mozilla.org

2alternatives

5features

2017since

Overview

5 features

Ultrawidey sits in PulseGate's Video & media players category. It focuses on removing black bars and fitting streaming videos to ultrawide displays. Ultrawidey is a consumer product aimed at firefox users with ultrawide monitors. Ultrawidey costs nothing to use. Ultrawidey is available on the web and embeddable surfaces.

StarChap builds and maintains Ultrawidey, and it first shipped in 2017. Among its 5 catalogued features are 21:9 Video Fitting, Automatic Aspect Ratio, and Black Bar Removal. The interface is available in 32 languages, including Czech, German, and Greek.

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

21:9 Video Fitting
Automatic Aspect Ratio
Black Bar Removal
Keyboard Shortcuts
Streaming Service Support

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

Indexed11 Sept · 11:20 UTC
Ultrawidey verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Ultrawidey

What does Ultrawidey do?: Ultrawidey focuses on removing black bars and fitting streaming videos to ultrawide displays. It is catalogued under Video & media players on PulseGate.
Who is Ultrawidey for?: Ultrawidey is a consumer product built for firefox users with ultrawide monitors.
Is Ultrawidey free?: Yes — Ultrawidey is free to use.
What platforms does Ultrawidey run on?: Ultrawidey runs on the web and embeddable surfaces.
Is Ultrawidey still maintained?: Unverified. Ultrawidey 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 Ultrawidey?: Similar projects tracked by PulseGate include UltraWide Video 21:9, Ultrawidify, and UltraWide YouTube.UltraWide Video 21:9 Ultrawidify UltraWide YouTube
Who develops Ultrawidey?: Ultrawidey is developed by StarChap.
When did Ultrawidey launch?: Ultrawidey first shipped in 2017.

At a glance

Pricing: Free
Platforms: Web
First seen: 11 Sept 2026
Built for: Firefox users with ultrawide monitors
Model: B2C
Solves: Removing black bars and fitting streaming videos to ultrawide displays.

Registered as

Firefox Add-ons: ultrawidey

Developer

StarChap

Index record

Indexed: 11 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 11 Sept 2026

Identity audit (13)

Slug: ultrawidey-mozilla-org
Lifecycle state recorded: 11 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 11 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: 11 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/ultrawidey

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do