Very good extension, easy to download videos.

アドオンが分かりやすい上に、１クリックでOK。使い勝手がとても良くて、とても重宝している。しかも安全で信頼性もある。最高のツールだと思う。非常に素晴らしい！！超おすすめ。

Je le trouve super, il peut télécharger partout.

Super extension! The best, my favorite downloader.

Super extensie, werkt altijd en kan alle bekende formaten aan of naar converteren.

Excellant than ever!

An excellent ad-on!!!!! The most useful ever... Thank you Mozila for creating this...

The only download addon I found that is consistent and thorough

This works much better than several others I've tried and most likely stick with it.

it is wonderful,it helps me for my practice and education.thank you

非常棒，超级喜欢，感谢开发团队！