Although there have been periods of time when this add-on would "break", the developers have always released updates that have fixed the issues. I am very satisfied at this point, and although I cannot say that I have compared it against any other tools, I don't feel the need to do so.

probably one of the easiest down loaders i have used

Good, but cannot find the way to save the video in a designated folder each time. (Was able in the past) There should be a way, but not intuitive.

Very useful! The only thing that makes me not very comfortable is that it requires installation of a companion app, which I'm not quite sure if it's very secure.

Ho scaricato per la 100esima volta un file sevendomi di Video DownloaHelper, il che la dice lunga sul mio apprezzamento per quest'app (gratuita!) fornitami da Firefox. Riesco a scaricare quasi tutto, anche se non sempre con la stessa velocità filmati di uguale 'potenza'. Ottima la qualità del registrato.

Peu de critiques. Les vidéos en MKV sont un peu longues à télécharger. Sinon RAS/

The best download helper I have ever used!

Sehr gutes ADD-On um Videos herunter zu laden.
Die Verzeichnisauswahl als Speicherort könnte verbessert werden!

Great app. It's the easiest I know of de downloading videos. The drop down ;list of videos I find very confusing however and it causes me to often download many copies of the same video

As far as I concern this is a Nowdays most powerful downloder.But somehow many button operation needed.Please wait for paying. I try to now.
知る限りで、最強のダウンローダーです。だけど、入力関係が多少手間です。アドオンにしても、何の悪さもしません。払いはちょっと待って、ギフト券で払おうとする勉強しています。

El mejor complemento para descarga de videos que he encontrado. Falla muy pocas veces.

This, combined with FoxyTab and a simple Autohotkey script, made a batch downloading task I had to do take 20 minutes instead of several hours.
My only complaint is not being able to change the default download directory when using quick download action from context menu. Don't know if that can be done using the external download client, but I don't care as I won't be installing it; the functionality should be in-browser.