Who should use Color Inverter?

Color Inverter is a consumer product built for firefox users who need inverted webpage colors.

Does Color Inverter have a free plan?

Yes — Color Inverter is free to use.

What platforms does Color Inverter run on?

Color Inverter runs on the web, embeddable surfaces, Windows, macOS, and Linux.

Is Color Inverter still active?

Unverified. Color Inverter 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 Color Inverter?

Similar projects tracked by PulseGate include Video Color Inverter, Intelligent Color Inversion, and Invert Colors.

Who develops Color Inverter?

Color Inverter is developed by Hugh Calan.

When did Color Inverter launch?

Color Inverter first shipped in 2024.

Back to the index

Color Inverter

Name: Color Inverter
Author: Hugh Calan

mozilla.orgOther creative

Color Inverter is a Firefox browser extension that reverses the colors on webpages. Users can toggle color inversion for individual domains from the browser toolbar, making it useful for visual comfort and contrast adjustments.

FreeWebEmbeddableWindowsmacOSLinux

Visit mozilla.org

3alternatives

4features

2024since

Overview

4 features

Color Inverter is an Other creative project. It focuses on inverting webpage colors to improve visual comfort, contrast, or accessibility while browsing. It is built as a consumer product for firefox users who need inverted webpage colors. It is available for free. It runs on the web, embeddable surfaces, Windows, macOS, and Linux.

Hugh Calan builds and maintains Color Inverter, and it first shipped in 2024. Among its 4 catalogued features are page color inversion, domain toggles, and toolbar control. The interface is available in 32 languages, including Czech, German, and Greek.

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

Page color inversion
Domain toggles
Toolbar control
Per-domain settings

Built with & integrations

Runs on

BrowserEmbeddableWindowsmacOSLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed13 Sep · 05:50 UTC
Color Inverter verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Color Inverter

What does Color Inverter do?: Color Inverter focuses on inverting webpage colors to improve visual comfort, contrast, or accessibility while browsing. It is catalogued under Other creative on PulseGate.
Who should use Color Inverter?: Color Inverter is a consumer product built for firefox users who need inverted webpage colors.
Does Color Inverter have a free plan?: Yes — Color Inverter is free to use.
What platforms does Color Inverter run on?: Color Inverter runs on the web, embeddable surfaces, Windows, macOS, and Linux.
Is Color Inverter still active?: Unverified. Color Inverter 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 Color Inverter?: Similar projects tracked by PulseGate include Video Color Inverter, Intelligent Color Inversion, and Invert Colors.Video Color Inverter Intelligent Color Inversion Invert Colors
Who develops Color Inverter?: Color Inverter is developed by Hugh Calan.
When did Color Inverter launch?: Color Inverter first shipped in 2024.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who need inverted webpage colors
Model: B2C
Solves: Inverting webpage colors to improve visual comfort, contrast, or accessibility while browsing.

Registered as

Firefox Add-ons: color-inverter-css

Developer

Hugh Calan

Index record

Indexed: 13 Sep 2026
Lifecycle: Alive
Last seen: 13 Sep 2026

Identity audit (13)

Slug: color-inverter-mozilla-org
Lifecycle state recorded: 13 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 13 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: 13 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/color-inverter-css

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