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Monochromer

github.comBrowser DevTools & extensions

PulseGate's liveness check found it on 12 Oct 2026; it is registered on Firefox Add-ons and has been in the index since 11 Sep 2026. How this is checked

Monochromer is an open-source Firefox add-on that renders websites in monochrome. It is intended for users who prefer grayscale browsing for accessibility, focus, or reduced visual stimulation.

Inferred · not functionally tested

Open SourceWebEmbeddablemacOSWindowsLinux
Monochromer preview
Visit github.com

Overview

3 features

Purpose: Viewing websites without distracting colors or color-related visual stimulation.

Inferred · not functionally tested

Audience: Firefox users who want monochrome web browsing

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: open_source · license: Open Source · platforms: WEB · deployment: browser, embeddable, macos, windows, linux

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: github.com · addons.mozilla.org. These links do not verify the individual claims.

Monochromer sits in PulseGate's Browser DevTools & extensions category. Inferred · not functionally tested: It focuses on viewing websites without distracting colors or color-related visual stimulation. Inferred · not functionally tested: It is built as an open-source project for firefox users who want monochrome web browsing. Basis unknown · not verified: Monochromer is open source under the Open Source license. Basis unknown · not verified: It ships for the web, embeddable surfaces, macOS, Windows, and Linux.

xia-sava builds and maintains Monochromer, and it first shipped in 2018. Inferred · not functionally tested: Key capabilities include monochrome display, website color filtering, and firefox integration.

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

Tasks: Inferred · not functionally tested

  • Monochrome display
  • Website color filtering
  • Firefox integration

Topics: Inferred · not functionally tested

Tags
firefox-addonmonochrome-browsinggrayscale-webaccessibility-tool

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

License
Open Source
Public signals
HTTPSPrivacy PolicyTerms of ServiceOpen SourceFree tierStore listing found
Legal
Privacy Policy Terms of Service

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed11 Sep · 10:42 UTC
    Monochromer seen via Firefox Add-ons
    Source: Firefox Add-ons · Open

Frequently asked questions about Monochromer

What does Monochromer do?
Inferred · not functionally tested: Monochromer focuses on viewing websites without distracting colors or color-related visual stimulation. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Monochromer for?
Inferred · not functionally tested: Monochromer is an open-source project built for firefox users who want monochrome web browsing.
Is Monochromer free?
Basis unknown · not verified: Yes — Monochromer is open source under the Open Source license and free to use.
What platforms does Monochromer run on?
Basis unknown · not verified: Monochromer runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Monochromer still active?
PulseGate's liveness check found it on 12 Oct 2026.
Who makes Monochromer?
Monochromer is developed by xia-sava.
When did Monochromer launch?
Monochromer first shipped in 2018.
Is Monochromer open source?
Basis unknown · not verified: Yes — Monochromer is open source under the Open Source license.

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