Amazing

very versatile

功能非常强大，惊喜，赞！

de lo mejor

Отличное расширение! Спасибо большое!

great add on, outstanding job! Highly recommended. This add on works where many others I have tried won't work.

very good，very easy/convenient to use。

Atende perfeitamente para eu guardar meus vídeos preferidos do curso de harmônica.

video downloadhelper give me a comfortable enjoyment of surf intenet.

Its really handy

Thank you so much for creating this add on app.. :-) It is very useful to me..

t's easy to use and you can download almost all the audios and videos embedded In website you want.

very useful

One of the best app for Mozila!! Разрабу респект!!