Convert web pages to .mp3 files, locally.

What is Web2mp3?
Web2mp3 is a Firefox add-on that allows you to convert web pages, including shazam tags and Youtube pages, into .mp3 files locally. It requires the installation of the python application and the youtube-dl package, as well as the addition of the native messaging app. Once installed, you can easily download your shazam tags and enjoy your favorite Youtube videos as mp3 files.
Users: 81
Rating: 4.00 (4)
Version: 1.2resigned1 (Last updated: 2024-04-25)
Creation date: 2017-10-12
Weekly download count: 2
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
  • nativeMessaging
  • notifications
  • tabs
  • <all_urls>
Size: 11.89K
URLs: Website
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
Want to check extension ranking and stats more quickly for other Firefox add-ons? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Firefox Browser Add-ons.
Chrome-Stats extension

Disclaimer: this has been done for my own use, feel free to use it and submit changes, but I probably won't spend a lot of time maintaining it.

This is a tiny web extension which does two things:

  • It allows you to convert your shazam tags into mp3 files;
  • It allows you to download any Youtube page as an mp3 file.


First, this extension requires some steps before working properly.

It requires that you install the python application locally, and that you install the "youtube-dl" package.

See more
Risk impact

Web2mp3 is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Web2mp3 if you trust the publisher.

Risk likelihood

Web2mp3 is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details