Transpose / Speed / Reverb - Shifter

Name: Transpose / Speed / Reverb - Shifter
Rating: 5 (2 reviews)
Author: LmExtensions

Change pitch and speed, plus 12 audio effects such as reverb, bass boost, 8D audio, chorus, lo-fi, vocal boost and more - for YouTube, Spotify and Apple Music (pitch changer) (pitch shifter)

Overview

Firefox Add-ons Store

Daily users

214

Data as of 2026-07-26

Rating:

5.00

(2)

Version:

3.5.5

Last updated: 2026-07-24

Features & Capabilities

Full Compatibility with YouTube / Spotify / Apple Music.

Partial Compatibility with Amazon Music and SoundCloud.

--UPDATES--

● Overwhelmingly better sound quality through the "Speed Correction" mode, affecting both the speed slider and the semitones slider.

● Added an "Advanced" button, with features such as, Bass, Treble, Chorus, Lo-Fi (Low-Pass), 3D Widener, Punch (Compressor), Air (Brilliance), Sub-Bass, Echo (Delay), Vocal Boost, 8D Audio.

● Added a Reverb slider.

● Added compatibility for Apple Music.

● Added partial compatibility for SoundCloud and Amazon Music.

--BUG FIXES--

● Switching songs on Spotify no longer resets the Transpose/Pitch settings.

● No longer effects every tab on your browser.

● Implemented an On/Off button on the UI allowing users to bring back the selected sites native playback speed settings if wanted.

● Fixed a bug where Spotify randomly mutes when changing songs too fast, requiring a page refresh.

--WARNINGS--

● When disabling the extension through the UI, your current tab will be refreshed to prevent bugs, by default the extension is disabled.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

3.5.5 Last updated: 2026-07-24

Version code:

6373717

Creation date:

2026-06-13

Risk:

Permissions:

activeTab
storage
*://*.youtube.com/*
*://open.spotify.com/*
*://*.soundcloud.com/*
*://music.apple.com/*
*://*.amazon.com/*
*://*.amazon.co.uk/*
*://*.amazon.de/*
*://*.amazon.fr/*

Content scripts matches:

*.youtube.com
open.spotify.com
*.soundcloud.com
music.apple.com
*.amazon.com
*.amazon.co.uk
*.amazon.de
*.amazon.fr
*.amazon.es
*.amazon.it

Size:

75.22KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-26

Compare stats and ranking:

Ranking

# 7,821 ▲

Other rankings

#3 in transpose keyword 36 ▲

#31 in shift keyword 23 ▲

#67 in speed keyword 53 ▲

#89 in lift keyword 2 ▲

#121 in spend keyword 40 ▲

Upgrade to see more rankings

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:

LmExtensions

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/transpose-shifter/

Is Transpose / Speed / Reverb - Shifter 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.

Transpose / Speed / Reverb - Shifter requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: youtube.com, spotify.com, soundcloud.com, apple.com, amazon.com, co.uk, amazon.de, amazon.fr, amazon.es, amazon.it, amazon.ca, co.jp, com.au
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

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.

Transpose / Speed / Reverb - Shifter 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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