Who is Volume Master for?

Volume Master is a consumer product built for firefox users who watch videos, listen to music, or play browser games.

Is Volume Master free?

Yes — Volume Master is free to use.

What platforms does Volume Master run on?

Volume Master runs on the web and embeddable surfaces.

Is Volume Master still maintained?

Unverified. Volume Master 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 Volume Master?

Similar projects tracked by PulseGate include Volume Master, Volume Master, and Volume Booster.

Who makes Volume Master?

Volume Master is developed by DevHub.

When did Volume Master launch?

Volume Master first shipped in 2025.

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Volume Master

Name: Volume Master
Author: DevHub

mozilla.orgAudio measurement & analysis

Volume Master is a Firefox browser extension that boosts website audio up to 600% and provides controls for volume, bass, and treble. It applies settings per tab for users watching videos, listening to music, or playing browser games.

FreeWebEmbeddable

Visit mozilla.org

1alternative

6features

2025since

Overview

6 features

Volume Master is an Audio measurement & analysis project. It focuses on controlling and enhancing inconsistent or insufficient audio volume and tone across websites. It is built as a consumer product for firefox users who watch videos, listen to music, or play browser games. It is available for free. Volume Master is available on the web and embeddable surfaces.

It is developed by DevHub, and it first shipped in 2025. Key capabilities include volume boost, bass control, and treble 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.

Volume boost
Bass control
Treble control
Per-tab settings
Real-time sliders
Animated interface

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

Indexed8 Sept · 03:00 UTC
Volume Master verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Volume Master

What is Volume Master?: Volume Master focuses on controlling and enhancing inconsistent or insufficient audio volume and tone across websites. It is catalogued under Audio measurement & analysis on PulseGate.
Who is Volume Master for?: Volume Master is a consumer product built for firefox users who watch videos, listen to music, or play browser games.
Is Volume Master free?: Yes — Volume Master is free to use.
What platforms does Volume Master run on?: Volume Master runs on the web and embeddable surfaces.
Is Volume Master still maintained?: Unverified. Volume Master 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 Volume Master?: Similar projects tracked by PulseGate include Volume Master, Volume Master, and Volume Booster.Volume Master Volume Master Volume Booster
Who makes Volume Master?: Volume Master is developed by DevHub.
When did Volume Master launch?: Volume Master first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who watch videos, listen to music, or play browser games
Model: B2C
Solves: Controlling and enhancing inconsistent or insufficient audio volume and tone across websites.

Registered as

Firefox Add-ons: volumemasterplus

Developer

DevHub

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
Last seen: 8 Sept 2026

Identity audit (13)

Slug: volume-master-mozilla-org
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 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: 8 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/volumemasterplus

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