StereoToMono

By: no9 Add-on

Mixes stereo audio together to create mono output in both channels.

Overview

Firefox Add-ons Store

Daily users

1,384 ▲ 20

Data as of 2026-08-22

Rating:

4.73

(15)

Version:

1.2

Last updated: 2023-08-02

Games & Entertainment

Features & Capabilities

StereoToMono is a Firefox add-on that mixes stereo audio together, creating mono output in both channels. It allows you to listen to videos or audios in mono, balancing stereo images, resolving phase correlation issues, or using a single speaker.

User Growth & Download Statistics

Add-on

By:

no9

Daily users:

1,384 20

Rating:

4.73

(15)

Version:

1.2 Last updated: 2023-08-02

Version code:

5603264

Creation date:

2022-08-29

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

74.34KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-22

Compare stats and ranking:

Ranking

# 2,716 ▲ 24

Other rankings

#253 in Games & Entertainment ▲ 2#161 in channel keyword 38 ▼ 15#204 in create keyword 28 #235 in audio keyword 36

Other platforms

StereoToMono (v1.0)

9,000 4.26

(66)

For Developers

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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:

no9

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/stereotomono/

Permission Change History

2023-08-01: Version 0.1 → 1.1

Add Permissions: contextMenus storage

Remove Permissions: http://*/* https://*/* file:///*/*

User Reviews

Users find StereoToMono very useful for converting stereo audio to mono, especially for videos with audio only in one ear. It works well across multiple platforms and enhances user experience. However, some users are concerned about the add-on's broad permissions that can access data on all visited websites, which raises privacy concerns and leads to disabling the extension despite its benefits.

Pros

Effectively converts stereo audio to mono, improving audio experience on videos where sound is only in one ear.
Works well across various websites like YouTube and TikTok.
Simple and helpful for users who dislike stereo separation in music or videos.
No apparent performance or functional issues noted, works reliably as intended.

Cons

Requires broad permissions to access data on all websites, raising privacy and security concerns.
Permission prompts cause some users to distrust or disable the add-on despite its functionality.

Recent reviews

by tu*****, 2026-06-12

by wx*****, 2026-05-20

View all user reviews ›

Is StereoToMono 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.

StereoToMono requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

StereoToMono has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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