Who should use Sound Equalizer Plus?

Sound Equalizer Plus is a consumer product built for firefox users who want to customize web audio.

Is Sound Equalizer Plus free?

Yes — Sound Equalizer Plus is free to use.

What platforms does Sound Equalizer Plus run on?

Sound Equalizer Plus runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Is Sound Equalizer Plus still active?

Unverified. Sound Equalizer Plus 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 Equalizer Plus?

Similar projects tracked by PulseGate include Audio Equalizer, Sound Equalizer, and Equalizer HD.

Who develops Sound Equalizer Plus?

Sound Equalizer Plus is developed by Jonathan.

How long has Sound Equalizer Plus been around?

Sound Equalizer Plus first shipped in 2024.

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Sound Equalizer Plus

Name: Sound Equalizer Plus
Author: Jonathan

mozilla.orgOther music & audio

Sound Equalizer Plus is a Firefox browser extension that lets users adjust sound frequencies for audio played in the browser. It is intended for listeners who want to customize their web playback experience with equalizer controls.

FreeWebEmbeddablemacOSWindowsLinux

Visit mozilla.org

1alternative

4features

2024since

Overview

4 features

Sound Equalizer Plus sits in PulseGate's Other music & audio category. It focuses on adjusting web audio frequencies to create a more personalized listening experience. It is built as a consumer product for firefox users who want to customize web audio. Sound Equalizer Plus is free to use. Sound Equalizer Plus is available on the web, embeddable surfaces, macOS, Windows, and Linux.

Jonathan builds and maintains Sound Equalizer Plus, and it first shipped in 2024. Among its 4 catalogued features are frequency adjustment, audio equalizer, and web playback 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.

Frequency adjustment
Audio equalizer
Web playback control
Custom listening profiles

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed17 Sep · 12:36 UTC
Sound Equalizer Plus verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Sound Equalizer Plus

What is Sound Equalizer Plus?: Sound Equalizer Plus focuses on adjusting web audio frequencies to create a more personalized listening experience. It is catalogued under Other music & audio on PulseGate.
Who should use Sound Equalizer Plus?: Sound Equalizer Plus is a consumer product built for firefox users who want to customize web audio.
Is Sound Equalizer Plus free?: Yes — Sound Equalizer Plus is free to use.
What platforms does Sound Equalizer Plus run on?: Sound Equalizer Plus runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Sound Equalizer Plus still active?: Unverified. Sound Equalizer Plus 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 Equalizer Plus?: Similar projects tracked by PulseGate include Audio Equalizer, Sound Equalizer, and Equalizer HD.Audio Equalizer Sound Equalizer Equalizer HD
Who develops Sound Equalizer Plus?: Sound Equalizer Plus is developed by Jonathan.
How long has Sound Equalizer Plus been around?: Sound Equalizer Plus first shipped in 2024.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who want to customize web audio
Model: B2C
Solves: Adjusting web audio frequencies to create a more personalized listening experience.

Registered as

Firefox Add-ons: sound-equalizer-plus

Developer

Jonathan

Index record

Indexed: 17 Sep 2026
Lifecycle: Alive
Last seen: 17 Sep 2026

Identity audit (13)

Slug: sound-equalizer-plus-mozilla-org
Lifecycle state recorded: 17 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 17 Sep 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: 17 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/sound-equalizer-plus

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