Gain - Volume Booster

Name: Gain - Volume Booster
Rating: 5 (4 reviews)
Author: Hookset

Tired of misleading, featureless volume boosters? Gain is your solution. You can boost browser audio up to 600%, and it includes a dark mode, whitelist and blacklist, site memory, and several more key features.

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Install

Features & Capabilities

Gain gives you real control over your browser audio.

If a video is too quiet, a stream is mixed badly, or Firefox just does not go loud enough, Gain lets you boost any tab from 0% to 600% using the Web Audio API, far beyond the browser’s built-in limit.

Key Features:

Volume control from 0–600% on supported tabs
Bass Boost and Voice Boost EQ filters
Dark mode, synced across popup and settings
Blacklist and whitelist for site control
Audio tabs list to see tabs currently playing sound
Per-site volume memory for faster repeat use
Default volume setting for newly activated tabs
URL-change reset to prevent boosted settings carrying into a new video or stream
Click-to-use activation with optional per-site persistent access
Playlist-friendly option to keep settings when the URL changes
Intricate settings control, including behavior and interface customization
Dynamics compressor to reduce distortion at higher gain
Live toolbar badge, color-coded by volume level
Direct number entry for precise volume control

Keyboard controls: arrow keys adjust volume by 1, Shift + Arrow Key adjusts in steps of 10.

Privacy:

Everything runs locally.

No accounts, no tracking, no data sent anywhere — ever.

To view the source code, visit the dedicated GitHub repository.

Open source under the GPL v3 License.

User Growth & Download Statistics

Add-on

By:

Hookset

Daily users:

58 10

Rating:

5.00

(4)

Version:

1.1.3 Last updated: 2026-06-20

Version code:

6315411

Creation date:

2026-04-25

Risk:

Permissions:

Size:

62.28KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-14

Compare stats and ranking:

Ranking

# 14,388 ▲ 1,296

Other rankings

#27 in volume booster keyword 54 #53 in boost keyword 37 ▲ 4#195 in cost keyword 9 ▲ 12

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Hookset

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/gain-volume-booster/

Website:

https://github.com/Hookset/gain-volume-booster

User Reviews

by Sp*****, 2026-05-30

by Sp*****, 2026-05-03

View all user reviews ›

Is Gain - Volume Booster Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Gain - Volume Booster requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Gain - Volume Booster is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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