Must have add-on ! Rated 5 out of 5 stars

Downloadhelper doen't work on Firefox 19 beta on Mac because it's impossible to download videos but it works fine on Firefox 18 and it's a one of the best add-ons. I hope the developer fix this or maybe it's a firefox bug ?

This review is for a previous version of the add-on (4.9.13.1-signed).