VDH has earned its reputation and works quite well on a surprising number of sites. (Although sometimes requires some finagling, refreshing, cleaning its history, etc.) I was hesitant to install the CoApp, but since it's open source I went ahead, and it has indeed helped a lot. Highly recommended. Thanks to the devs for continued work and improvements.

X（旧Twitter）の動画を簡単にダウンロード出来て便利。

Great helper

Excellent extension , i really recommend it

An essential add-on!

Ottimo software, funziona bene e facile da utilizzare

Comes in clutch

Great

Awesome!

very good

Excellent téléchargeur

OTTIMO UNO DEI MIGLIORI PER IL DOWNLOAD CON FIREFOX

Best download helper EVER!!

DownloadHelper works very well on many websites. This tool is absolutely worth the money. Thanks a lot to the developers for this fantastic tool.

Excellent Program, updates in timely fashion.

One of the best extensions on Mozilla ever!

This extension is AMAZING!! Thank you so much for the wonderful job you've done all these years! You have evolved so freaking much from the beginning! After the last update, it was NIGHT and DAY, in terms of easiness of use AND of rapidity!! Love you guys!!