Who is 1000% Sound Volume for?

1000% Sound Volume is a consumer product built for firefox users who need louder web audio.

Does 1000% Sound Volume have a free plan?

Yes — 1000% Sound Volume is free to use.

What platforms does 1000% Sound Volume run on?

1000% Sound Volume runs on the web, embeddable surfaces, Windows, macOS, and Linux.

Is 1000% Sound Volume still maintained?

Unverified. 1000% Sound Volume 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 1000% Sound Volume?

Similar projects tracked by PulseGate include Volume Booster 600%, Sound Booster 1000%, and Volume Booster.

Who develops 1000% Sound Volume?

1000% Sound Volume is developed by testdev.

When did 1000% Sound Volume launch?

1000% Sound Volume first shipped in 2026.

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1000% Sound Volume

Name: 1000% Sound Volume
Author: testdev

mozilla.orgPlayers & playlists

1000% Sound Volume is a Firefox browser extension that boosts audio volume on websites by up to 1000 percent. It is intended for users who need louder playback from web-based media.

FreeWebEmbeddableWindowsmacOSLinux

Visit mozilla.org

3alternatives

4features

2026since

Overview

4 features

In the Players & playlists space, 1000% Sound Volume takes a focused approach. It focuses on increasing audio volume when websites or media play too quietly. It is built as a consumer product for firefox users who need louder web audio. It is available for free. It ships for the web, embeddable surfaces, Windows, macOS, and Linux.

Behind 1000% Sound Volume is testdev, and it first shipped in 2026. Among its 4 catalogued features are volume boost, website audio control, and firefox integration. 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
Website audio control
Firefox integration
Browser tab access

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

Indexed10 Sep · 07:04 UTC
1000% Hlasitost zvuku verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about 1000% Sound Volume

What is 1000% Sound Volume?: 1000% Sound Volume focuses on increasing audio volume when websites or media play too quietly. It is catalogued under Players & playlists on PulseGate.
Who is 1000% Sound Volume for?: 1000% Sound Volume is a consumer product built for firefox users who need louder web audio.
Does 1000% Sound Volume have a free plan?: Yes — 1000% Sound Volume is free to use.
What platforms does 1000% Sound Volume run on?: 1000% Sound Volume runs on the web, embeddable surfaces, Windows, macOS, and Linux.
Is 1000% Sound Volume still maintained?: Unverified. 1000% Sound Volume 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 1000% Sound Volume?: Similar projects tracked by PulseGate include Volume Booster 600%, Sound Booster 1000%, and Volume Booster.Volume Booster 600%Sound Booster 1000%Volume Booster
Who develops 1000% Sound Volume?: 1000% Sound Volume is developed by testdev.
When did 1000% Sound Volume launch?: 1000% Sound Volume first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 10 Sep 2026
Built for: Firefox users who need louder web audio
Model: B2C
Solves: Increasing audio volume when websites or media play too quietly.

Registered as

Firefox Add-ons: 1000-sound-volume

Developer

testdev

Index record

Indexed: 10 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 10 Sep 2026

Identity audit (13)

Slug: 1000-hlasitost-zvuku-mozilla-org
Lifecycle state recorded: 10 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 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: 10 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/1000-sound-volume

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