# Audio to MP3

> Convert any streaming audio to MP3 and download it to your machine.

Canonical page: [https://chrome-stats.com/d/audio-to-mp3](https://chrome-stats.com/d/audio-to-mp3)

## Overview

- **ID:** `audio-to-mp3`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Sevina
- **Category:** download-management,photos-music-videos,other
- **Daily users:** 3,169
- **Weekly downloads:** 121
- **Rating:** 3.00 / 5 (37 ratings)
- **Version:** 0.1.2resigned1
- **Last updated:** 2024-04-26
- **First published:** 2019-01-19
- **Size:** 149 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/audio-to-mp3/)
- **Website:** [http://mybrowseraddon.com/audio-to-mp3.html](http://mybrowseraddon.com/audio-to-mp3.html)

## Description

**Audio to MP3** is a versatile Chrome extension that lets you seamlessly convert streaming or offline audio files into MP3 format directly in your browser. When you visit a website with streaming audio or video, the extension detects the audio stream and activates a conversion button. Clicking this button converts the audio to MP3 and downloads it to your device effortlessly. For offline files, simply drag and drop your audio into a new tab and initiate the conversion. Users can choose from five MP3 quality settings, with a default of 128 kbps, to suit their preferences.

Built using the open-source JavaScript library `lamejs` and the `BaseAudioContext.decodeAudioData()` API, Audio to MP3 ensures high-quality and reliable audio conversions right within your browser. Please note that it does not support YouTube videos due to policy restrictions. Always respect copyright laws when downloading audio content. For feature requests or issues, visit the extension's homepage to submit feedback or bug reports.

## Rankings

- #1,592 — Overall
- #142 — Download Management
- #243 — Other extensions
- #272 — Photos, Music & Videos
- #4 — audio
- #4 — mp3

## Permissions and access

### Permissions

- `storage`
- `<all_urls>`
- `downloads`
- `contextMenus`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

User reviews are mixed: some report that Audio to MP3 can find audio on certain sites and is free, while many note it often does not work, crashes the browser, or consumes heavy CPU resources. Key recurring issues are unreliability, high resource usage, stability problems, and limited cross-site/OS compatibility.

### Pros

- Can find and download audio on many sites, including some that other add-ons miss.
- Free to use.
- In some cases, it does get the job done and actually completes the task.

### Cons

- Unreliable and frequently not working across Firefox versions and operating systems.
- High CPU/resource usage during encoding (CPU-intensive MP3 encoding).
- Causes browser instability or crashes (freezes or black screens).
- Limited site support; not all sites are supported (e.g., VK and similar sites).
- Compatibility issues on Linux/macOS and with certain Firefox builds leading to inconsistent performance.

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- [Youtube to MP3 Downloader](https://chrome-stats.com/d/youtube-to-mp3-downloader-plus) — 224 users, 2.62 / 5
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- [mp3helper](https://chrome-stats.com/d/mp3helper) — 184 users, 1.00 / 5
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- [Audio Recorder](https://chrome-stats.com/d/audio-recorder) — 3,198 users, 1.80 / 5
- [YouTube™ to MP3](https://chrome-stats.com/d/youtube-to-mp3-wext) — 10,927 users, 3.16 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/audio-to-mp3)