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UnderTone

github.comInfrastructure

No liveness check has reached it yet; it is registered on Firefox Add-ons and has been in the index since 9 Oct 2026. How this is checked

UnderTone is an open-source Firefox browser extension focused on audio functionality in the browser. It is intended for users who want to modify or control browser audio through an installable extension.

Inferred · not functionally tested

Open SourceWebEmbeddablemacOSWindowsLinux
UnderTone preview
Visit github.com

Overview

3 features

Purpose: Improving or customizing browser audio without relying on a separate desktop application.

Inferred · not functionally tested

Audience: Firefox users who want enhanced browser audio controls

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.

UnderTone sits in PulseGate's Browser DevTools & extensions category. Inferred · not functionally tested: It focuses on improving or customizing browser audio without relying on a separate desktop application. Inferred · not functionally tested: It is built as an open-source project for firefox users who want enhanced browser audio controls. Basis unknown · not verified: The project is open source (Open Source). Basis unknown · not verified: UnderTone is available on the web, embeddable surfaces, macOS, Windows, and Linux.

Behind UnderTone is MuriloRibeiro01, and it first shipped in 2026. Inferred · not functionally tested: Among its 3 catalogued features are audio controls, browser integration, and firefox support.

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

Tasks: Inferred · not functionally tested

  • Audio controls
  • Browser integration
  • Firefox support

Topics: Inferred · not functionally tested

Tags
firefox-extensionbrowser-audioaudio-controlsopen-source-extension

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. Indexed9 Oct · 03:27 UTC
    UnderTone seen via Firefox Add-ons
    Source: Firefox Add-ons · Open

Frequently asked questions about UnderTone

What is UnderTone?
Inferred · not functionally tested: UnderTone focuses on improving or customizing browser audio without relying on a separate desktop application. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is UnderTone for?
Inferred · not functionally tested: UnderTone is an open-source project built for firefox users who want enhanced browser audio controls.
Does UnderTone have a free plan?
Basis unknown · not verified: Yes — UnderTone is open source under the Open Source license and free to use.
What platforms does UnderTone run on?
Basis unknown · not verified: UnderTone runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is UnderTone still active?
Unverified. UnderTone 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 projects are similar to UnderTone?
Similar projects tracked by PulseGate include icanhazUX, BGA Carcassonne Color Manager, and Erasion.icanhazUXBGA Carcassonne Color ManagerErasion
Who makes UnderTone?
UnderTone is developed by MuriloRibeiro01.
How long has UnderTone been around?
UnderTone first shipped in 2026.

Also in Browser DevTools & extensions

Same category — not a similarity match