This version came with some problems about stream download in periscope web. Duration of live videos is not correct and so it losts the beginning part of the videos.

大変役に立ってます

I use downloadhelper often. It allows me the ability to download stuff and save it for further viewing.

Slow and desperately needing rename file function. Okay though. Works on hard to download files

reallly like it, simple to download and convert

Excellent, fast, efficient, trouble free. Highly recommended

Ha sido útil y fácil de usar, lo que no había podido es agregarle el sonido,pero ya me di cuenta como es. Muchas Gracias.

This add-on requires a companion app which is not mentioned at all in any of the instructions or documentation here. Super lame and a little sketchy to do that. Why is this a 'Recommended' add-on? Cmon Firefox people.

IMHO this addon was once perfect. But then they decided to start selling video converters and nothing worked anymore without them - at least for me. Thats why I've decided to get rid of it entirely. Nowdays it just annoys me with popping up updates during browsing or watching videos. So no thanks. Not for me anymore.

特别好用，方便实用！

A very good add-on to use!