What is ChatGPT Full Width?

ChatGPT's narrow answer column makes better use of the available browser width. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is ChatGPT Full Width for?

ChatGPT Full Width is a consumer product built for firefox users who want a wider ChatGPT reading layout.

Is ChatGPT Full Width free?

Yes — ChatGPT Full Width is free to use.

What platforms does ChatGPT Full Width run on?

ChatGPT Full Width runs on the web and embeddable surfaces.

Is ChatGPT Full Width still active?

Unverified. ChatGPT Full Width 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 ChatGPT Full Width?

Similar projects tracked by PulseGate include WideGPT, ChatGPT-WiderAnswerSpace, and FatGPT.

Who makes ChatGPT Full Width?

ChatGPT Full Width is developed by oscar.

When did ChatGPT Full Width launch?

ChatGPT Full Width first shipped in 2025.

Back to the index

ChatGPT Full Width

Name: ChatGPT Full Width
Author: oscar

mozilla.orgBrowser DevTools & extensions

ChatGPT Full Width is a Firefox browser extension that applies CSS to ChatGPT.com so answers use the full width of the browser window. It is intended for individual ChatGPT users who prefer a wider reading and writing layout.

FreeWebEmbeddable

Visit mozilla.org

1alternative

4features

2025since

Overview

4 features

In the Browser DevTools & extensions space, ChatGPT Full Width takes a focused approach. ChatGPT's narrow answer column makes better use of the available browser width. ChatGPT Full Width is a consumer product aimed at firefox users who want a wider ChatGPT reading layout. ChatGPT Full Width costs nothing to use. It ships for the web and embeddable surfaces.

Behind ChatGPT Full Width is oscar, and it first shipped in 2025. Among its 4 catalogued features are full-width answers, CSS layout adjustment, and chatGPT.com 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.

Full-width answers
CSS layout adjustment
ChatGPT.com support
Firefox integration

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

Indexed14 Sep · 22:16 UTC
ChatGPT Full Width verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about ChatGPT Full Width

What is ChatGPT Full Width?: ChatGPT's narrow answer column makes better use of the available browser width. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is ChatGPT Full Width for?: ChatGPT Full Width is a consumer product built for firefox users who want a wider ChatGPT reading layout.
Is ChatGPT Full Width free?: Yes — ChatGPT Full Width is free to use.
What platforms does ChatGPT Full Width run on?: ChatGPT Full Width runs on the web and embeddable surfaces.
Is ChatGPT Full Width still active?: Unverified. ChatGPT Full Width 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 ChatGPT Full Width?: Similar projects tracked by PulseGate include WideGPT, ChatGPT-WiderAnswerSpace, and FatGPT.WideGPT ChatGPT-WiderAnswerSpace FatGPT
Who makes ChatGPT Full Width?: ChatGPT Full Width is developed by oscar.
When did ChatGPT Full Width launch?: ChatGPT Full Width first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who want a wider ChatGPT reading layout
Model: B2C
Solves: ChatGPT's narrow answer column makes better use of the available browser width.

Registered as

Firefox Add-ons: chatgpt-full-width

Developer

oscar

Index record

Indexed: 14 Sep 2026
Lifecycle: Alive
Last seen: 14 Sep 2026

Identity audit (13)

Slug: chatgpt-full-width-mozilla-org
Lifecycle state recorded: 14 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 14 Sep 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: 14 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/chatgpt-full-width

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