I would like a simple way to download videos from the internet. For example, from YouTube, but also from social networks or, ideally, streams. Specific add-ons for YouTube exist, but I’m looking for something more general.
There are probably hundreds of Firefox plugins that promise to do this. However, many of them don’t seem to be very good. Which plugin do you use for this?


Does it have to be a Firefox extension? If not, I would use yt-dlp. It’s open source and easy to use.
If you use Android, I recommend Seal. It uses
yt-dlpinternally, nicely packaged into an Android app.Unfortunately Seal has not had a release in over a year, since October 2024. It may still work but due to a recent (November 2025) change in yt-dlp an external JavaScript runtime is now required for full YouTube support.
There is YTDLnis as an alternative. It’s on F-Droid but for some reason the page for it 404’s (it’s clearly there in my client though).
Ah, good to know.
I haven’t downloaded anything from YouTube recently, but will switch to YTDLnis.
Thanks!
This is what I use. I use OpenWith extension to invoke yt-dlp from Firefox. This extension was abandoned in 2021 but it still works.