While it takes some technical know-how to use correctly, you won't find a better tool for downloading videos through FF.

easy to use

it is very good. thanks

the best app ever

Excellent! Very helpful and dependable

exellente

Muito eficiente e confiável!

Excelente herramienta y muy facil de usar...

muy bueno, me interesa

Funktioniert einwandfrei und ist leicht zu bedienen.

This is the single finest video download add-on for Firefox on the Macintosh platform. It downloads almost any video from any site, with very few exceptions, and no other add-ons will download from those exceptions, either. It's simply the best!

This downloads about any vid you want.

funciona de maravilla

If you need to download videos from multiple platforms in a practical and efficient way, I recommend the "Video DownloadHelper" extension. It will greatly simplify the download process and allow you to have access to interesting videos whenever you want.

Using it for years, works fine on many websites.