YouTube MP3 Downloader by Martin
It lets users download YouTube videos as .mp3 files directly from their browser. It auto-pre-fills the URL and folder. If no file name is provided, the add-on automatically fetches the video title and uses simple NLP to create a title.
Extension Metadata
About this extension
IMPORTANT NOTE: This extensions need a backend which you can download via the installer from: https://github.com/martin-iflap/YT-MP3-Downloader/releases
Uses a python backend .exe file which can be downloaded from github. The .exe uses ffmpeg and yt-dlp for the download process and doesn't collect any data or do any other actions. There is a possibility to launch the .exe as standalone app from the browser extension (also auto-pre-fills fields).
Uses a python backend .exe file which can be downloaded from github. The .exe uses ffmpeg and yt-dlp for the download process and doesn't collect any data or do any other actions. There is a possibility to launch the .exe as standalone app from the browser extension (also auto-pre-fills fields).
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Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Display notifications to you
- Access browser tabs
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0
- Size
- 25.38 kB
- Last updated
- 5 days ago (24 Aug 2026)
- Related Categories
- Licence
- Mozilla Public Licence 2.0
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection