Who is Equalizer Tool for?

Equalizer Tool is a consumer product built for youTube listeners using Firefox.

Is Equalizer Tool free?

Yes — Equalizer Tool is free to use.

What platforms does Equalizer Tool run on?

Equalizer Tool runs on the web, embeddable surfaces, and Android.

Is Equalizer Tool still maintained?

Unverified. Equalizer Tool 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 Equalizer Tool?

Similar projects tracked by PulseGate include YouTube Equalizer, Sound Equalizer, and Bass Boost Audio Equalizer.

Who develops Equalizer Tool?

Equalizer Tool is developed by Mr.Bear.

How long has Equalizer Tool been around?

Equalizer Tool first shipped in 2026.

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Equalizer Tool

Name: Equalizer Tool
Author: Mr.Bear

mozilla.orgOther music & audio

Equalizer Tool is a Firefox extension for customizing YouTube playback audio. It provides ten independent frequency bands, custom presets, and real-time spectrum animations, with support for Firefox on desktop and Android.

FreeWebEmbeddableAndroid

Visit mozilla.org

Overview

6 features

Equalizer Tool sits in PulseGate's Other music & audio category. It focuses on improving and customizing YouTube audio playback without leaving the browser. Equalizer Tool is a consumer product aimed at youTube listeners using Firefox. Equalizer Tool is free to use. Equalizer Tool is available on the web, embeddable surfaces, and Android.

It is developed by Mr.Bear, and it first shipped in 2026. Key capabilities include 10-band equalizer, custom presets, and spectrum visualizer. The interface is available in 32 languages, including Czech, German, and Greek.

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

10-band equalizer
Custom presets
Spectrum visualizer
YouTube audio control
Real-time animations
Firefox for Android

Built with & integrations

Runs on

BrowserEmbeddableAndroid

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sept · 20:47 UTC
Equalizer Tool - By Mr. Bear verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Equalizer Tool

What does Equalizer Tool do?: Equalizer Tool focuses on improving and customizing YouTube audio playback without leaving the browser. It is catalogued under Other music & audio on PulseGate.
Who is Equalizer Tool for?: Equalizer Tool is a consumer product built for youTube listeners using Firefox.
Is Equalizer Tool free?: Yes — Equalizer Tool is free to use.
What platforms does Equalizer Tool run on?: Equalizer Tool runs on the web, embeddable surfaces, and Android.
Is Equalizer Tool still maintained?: Unverified. Equalizer Tool 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 Equalizer Tool?: Similar projects tracked by PulseGate include YouTube Equalizer, Sound Equalizer, and Bass Boost Audio Equalizer.YouTube Equalizer Sound Equalizer Bass Boost Audio Equalizer
Who develops Equalizer Tool?: Equalizer Tool is developed by Mr.Bear.
How long has Equalizer Tool been around?: Equalizer Tool first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 12 Sept 2026
Built for: YouTube listeners using Firefox
Model: B2C
Solves: Improving and customizing YouTube audio playback without leaving the browser.

Registered as

Firefox Add-ons: equalizer-by-mr-bear

Developer

Mr.Bear

Index record

Indexed: 12 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 12 Sept 2026

Identity audit (13)

Slug: equalizer-tool-by-mr-bear-mozilla-org
Lifecycle state recorded: 12 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 Sept 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: 12 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/equalizer-by-mr-bear

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