Audio FX

Name: Audio FX
Author: AudioFX

By: AudioFX Add-on

Slowed + reverb, nightcore, lofi, 8D audio, karaoke and EQ for any audio in any browser tab.

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Features & Capabilities

Apply real-time audio effects to any video or song playing in your browser.

★ ONE-CLICK PRESETS Slowed + Reverb · Nightcore · Lofi · Vaporwave · Phonk · Daycore · Sped Up · Concert Hall · Bathroom · Bedroom Pop · Underwater · Old Radio · Telephone · Bass Boosted · Crystal Clear · Boomy · Mellow · 432 Hz Tune · 528 Hz Tune · Anti-Nightcore · Slowed XL · 8D Chill · Karaoke Night

★ EVERYTHING YOU CAN TWEAK • Speed / tempo (0.5× – 2×) • Pitch tuning (432, 440, 444, 528 Hz) • 3-band parametric EQ (bass, mid, treble) • Reverb with dry/wet mix • Volume boost up to 300% (with built-in soft limiter) • Vinyl-style or pitch-locked slowdown • 8D Audio — auto-panning spatial rotation • Karaoke / vocal cut

★ WORKS EVERYWHERE YouTube, SoundCloud, Bandcamp, podcasts, news sites — anywhere a <video> or <audio> element plays. For Spotify, Apple Music, Netflix and other DRM sites, click the badge to enable tab-capture mode.

★ PRO FEATURES Upgrade to Pro to unlock: • Per-site profiles — different settings auto-applied per website • Precision sliders — 10× finer steps for fine-tuning • Cloud sync — your settings on every Chrome install • Custom reverb upload — drop in any .wav or .mp3 impulse response • Save your own presets • Preset share codes — export and import settings as a portable string • 18+ extra presets • True pitch lock — keep voice pitch when slowing • 8D Audio + Karaoke effects • Export processed audio as .webm

★ PRIVACY Audio FX processes everything locally on your device. No audio is uploaded, recorded, or stored anywhere unless you explicitly use the Export feature (which downloads directly to your machine). Full privacy policy: <PASTE_YOUR_HOSTED_URL_HERE>

★ TIPS • Default keyboard shortcut: Alt+A opens the popup • Hover the ♪ logo to see your installed version • On Spotify: click the popup badge → "Enable tab capture" once per tab

Questions or bug reports? Email kurnatengimejl@gmail.com

User Growth & Download Statistics

Add-on

By:

AudioFX

Daily users:

18 1

Version:

0.8.1 Last updated: 2026-05-28

Version code:

6277748

Creation date:

2026-05-25

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

45.02KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-15

Compare stats and ranking:

Ranking

# 24,680 ▲ 595

Other rankings

#71 in udio keyword 7 ▲ 3#90 in audio keyword 35 ▲ 2#119 in slow keyword 6 ▲ 3

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:

AudioFX

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/audio-fx/

Is Audio FX 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.

Audio FX 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.

Audio FX 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 has low user count. Unpopular extensions may not be stable or safe.
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