Boostr is a consumer product built for firefox users who need per-tab audio volume control.

Is Boostr still active?

Unverified. Boostr 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 projects are similar to Boostr?

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

Boostr is developed by smeshidojoe.

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Boostr

Name: Boostr
Author: smeshidojoe

mozilla.orgBrowser DevTools & extensions

Boostr is a Firefox extension that lets users control volume independently for each browser tab and boost audio up to 500%. Volume settings are remembered while the browser remains open, and the extension does not require developer-reported data collection.

FreeWebEmbeddableWindowsmacOSLinux

Visit mozilla.org

Overview

4 features

Boostr is a Browser DevTools & extensions project. It focuses on controlling and increasing audio volume independently for individual browser tabs. It is built as a consumer product for firefox users who need per-tab audio volume control. Boostr costs nothing to use. It runs on the web, embeddable surfaces, Windows, macOS, and Linux.

It is developed by smeshidojoe, and it first shipped in 2026. Among its 4 catalogued features are per-tab volume control, audio boost to 500%, and remembered volume settings. The interface is available in 32 languages, including Czech, German, and Greek.

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

Per-tab volume control
Audio boost to 500%
Remembered volume settings
Firefox integration

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

Indexed3 Sept · 21:20 UTC
Boostr verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Boostr

What does Boostr do?: Boostr focuses on controlling and increasing audio volume independently for individual browser tabs. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Boostr for?: Boostr is a consumer product built for firefox users who need per-tab audio volume control.
Does Boostr have a free plan?: Yes — Boostr is free to use.
What platforms does Boostr run on?: Boostr runs on the web, embeddable surfaces, Windows, macOS, and Linux.
Is Boostr still active?: Unverified. Boostr 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 projects are similar to Boostr?: Similar projects tracked by PulseGate include Tab Volume Booster, Sound Booster 1000%, and Volume Booster.Tab Volume Booster Sound Booster 1000%Volume Booster
Who develops Boostr?: Boostr is developed by smeshidojoe.
When did Boostr launch?: Boostr first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 3 Sept 2026
Built for: Firefox users who need per-tab audio volume control
Model: B2C
Solves: Controlling and increasing audio volume independently for individual browser tabs.

Registered as

Firefox Add-ons: boostr

Developer

smeshidojoe

Index record

Indexed: 3 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 3 Sept 2026

Identity audit (13)

Slug: boostr-mozilla-org
Lifecycle state recorded: 3 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 3 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: 3 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/boostr

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