Who is Sound Master for?

Sound Master is a consumer product built for firefox users who need convenient browser audio controls.

Does Sound Master have a free plan?

Yes — Sound Master is free to use.

What platforms does Sound Master run on?

Sound Master runs on the web and embeddable surfaces.

Is Sound Master still maintained?

Unverified. Sound 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 Sound Master?

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

Who develops Sound Master?

Sound Master is developed by Aaron.

How long has Sound Master been around?

Sound Master first shipped in 2026.

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Sound Master

Name: Sound Master
Author: Aaron

mozilla.orgOther music & audio

Sound Master is a Firefox extension that lets users adjust the volume of the current browser tab with a draggable slider. It can switch between tabs playing audio and offers light and dark interface modes with multiple UI sizes.

FreeWebEmbeddable

Visit mozilla.org

1alternative

7features

2026since

Overview

7 features

Sound Master is an Other music & audio project. It focuses on controlling and boosting browser-tab audio without relying on system-wide volume controls. It is built as a consumer product for firefox users who need convenient browser audio controls. It is available for free. It runs on the web and embeddable surfaces.

It is developed by Aaron, and it first shipped in 2026. Among its 7 catalogued features are tab volume control, audio boosting, and draggable slider. The interface is available in 32 languages, including Czech, German, and Greek.

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

Tab volume control
Audio boosting
Draggable slider
Audio tab switching
Light mode
Dark mode
UI size options

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

Indexed18 Sep · 06:35 UTC
Sound Master verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Sound Master

What does Sound Master do?: Sound Master focuses on controlling and boosting browser-tab audio without relying on system-wide volume controls. It is catalogued under Other music & audio on PulseGate.
Who is Sound Master for?: Sound Master is a consumer product built for firefox users who need convenient browser audio controls.
Does Sound Master have a free plan?: Yes — Sound Master is free to use.
What platforms does Sound Master run on?: Sound Master runs on the web and embeddable surfaces.
Is Sound Master still maintained?: Unverified. Sound 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 Sound Master?: Similar projects tracked by PulseGate include Volume Master, Volume Master, and Sound-Booster.Volume Master Volume Master Sound-Booster
Who develops Sound Master?: Sound Master is developed by Aaron.
How long has Sound Master been around?: Sound Master first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 18 Sep 2026
Built for: Firefox users who need convenient browser audio controls
Model: B2C
Solves: Controlling and boosting browser-tab audio without relying on system-wide volume controls.

Registered as

Firefox Add-ons: sound-master

Developer

Aaron

Index record

Indexed: 18 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 18 Sep 2026

Identity audit (13)

Slug: sound-master-mozilla-org
Lifecycle state recorded: 18 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 18 Sep 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
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: 18 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/sound-master

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