How is this popular? Video quality is absolutely useless, while it does at least render a recording, the HD downloads are with rare exceptions far worse than 720p, and playback is jerky and unmanageable with delays in loading and every time you change part video watching. While I yet to find a HD downloaders that really works with changes youtube has made, this also isn't one. Maybe if pay to register the quality improves along with removing the annoying QC watermarks it adds but I won't test that theory.

It's great easy and free.

Perfeito, funciona muito bem. Perfect, works fine.

Best! Never go away please! ♥

An excellent and very stable extension. Highly recommended for downloading videos!

Works on a whole bunch of sites. I've downloaded over 100 videos at this point and all play perfectly.

the app is really good, it helped me a lot

Great app works a treat

My fav downloader! I've been using it quite for a while now. Not intense use. It's not mig's fault, but having to install extra plugins/addons to be able to choose the best file formats is a real PITA. Anyways, I recommend it over others.

Extensión fácil de usar y muy configurable. De los addons de descarga de vídeo para Firefox más efectivos. No es compatible con absolutamente todos los servicios web de video pero si con la gran mayoría incluso Youtube a dia de hacer esta reseña.
Este trabajo merece ser apoyado por todos. Un saludo y espero que siga así mucho tiempo.

very good！