They have a personal list of movies you cannot download from any web page.

Muy buena

good

vale la pena

Malwarebytes says it's malware, PUP.Optional.StartPage24 and removed it.

-update from 5 years on- no longer downloads youtube videos

orig: I have found this add-on nice and hardy, and gets almost all the videos I need.

Works fantastic! Highly recommend!!

Ok

Works for me perfectly well!

Fails to work with some videos that another extension can download, and successfully downloads some other videos that other extensions cannot download. It seems like I'll have to use two extensions for one purpose.

My most trusted addon!!!! Simply the best out there... fastest too - even with multiple simultaneous downloads

It could grab videos that IDM nor DownloadHelper could do. Very good.

easy to use

This is so far the best among those I've tried yet...