Very inconvenient..I tried using udl helper to download the video and everything worked fine

Opens up a tab to mp4point but url won't load

ENFIN une appli simple et qui marche pour télécharger toutes les vid sur YouTube sans se prendre la tête !! xD Dommage que FireFox ne le mette pas plus en avant ... Pas besoin d'upgrade : il est vraiment gratuit xD :)

Well I am sorry to say this did work, now it does not work anymore. I don't know if it is firefox's new version......so this gets a 1 star....................................for right now.

Button is not displayed. FF67 Ubuntu