Broken on Firefox Nightly 48.0a1 Rated 5 out of 5 stars

Hope you find some time to fix it.
You deserve 5 stars anyway.
Thank you!

Edit:
Fixed.
Grazie Giorgio!

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Great Tool Rated 5 out of 5 stars

add this to your toolbelt for grabbing files hidden behind flash....

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Хорошая работа / Good works Rated 5 out of 5 stars

У меня работает с Download Master. Отлично передаёт закачки в программу, нравится гораздо больше, чем "родное" дополнение от DM.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Has this wonderful add-on been scrapped? Rated 5 out of 5 stars

Rarely works with streaming sites like Youtube or Dailymotion any longer. No updates for months. Going to have to find another down loader since I can't stream for crap with my old laptop. My advice if you're considering this: Keep looking, this one has gone bye bye!

Yes I still had to give it 5 stars for being the best FF add-on for years of service

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Great, but too slow Rated 4 out of 5 stars

It's very great, making everything practically perfect when you want to download a movie, multi files or with download manager.
It might work great with Free Download Manager, but it takes very long to start it. Starting it manually makes it work immediately though. Sometimes it doesn't start FDM at all just waiting when I start it manually :/.

The second problem is that in media list displays files without size or size very small e.g. 48B (bites). They're not certainly media files, so could you just give an option to not detect such (small and unnecessary) files.
It could be nice also if toolbarbutton wouldn't just vanish when not active, just grayed or something, but still allowing to access settings command for example. You could give an option to choose if it would vanish or not.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Rated 5 out of 5 stars

perfect addon for downloading

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Works great with Free Download Manager Rated 5 out of 5 stars

Perfect plug in for free download manager (FDM)!

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Dead addon? No updates? Rated 3 out of 5 stars

Where is update? Pls update this addon. Not work properly on Youtube.

This review is for a previous version of the add-on (1.5.6.12.1-signed).  This user has a previous review of this add-on.

Great Rated 5 out of 5 stars

Using it as video grabber

Thanks

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Has stopped grabbing audio on YouTube Rated 4 out of 5 stars

Sometime in the last month or so it has stopped grabbing the audio from YouTube. This used to work just fine.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Fails to give any audio on YouTube Videos Rated 3 out of 5 stars

Would normally get 5 stars but presently will not download mp4's with any audio at any resolution on Youtube.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Pretty poor interface Rated 2 out of 5 stars

Clunky and hard to use interface.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Rated 5 out of 5 stars

Great!

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Rated 5 out of 5 stars

Te permite descargar de todo.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Very Good! Rated 5 out of 5 stars

It is The reason I use Firefox instead of Chrome and others.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Rated 5 out of 5 stars

finally, a great replacement for downloadhelper

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Impressive - The Best I have tried Rated 5 out of 5 stars

Versatile, many formats, quick and reliable. Excellent work.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Downloader puissant mais Rated 4 out of 5 stars

Excellent détecteur et téléchargeur de médias vidéo ou audio en ligne.
Plus : léger, actif, open source, choix du downloader très large;
Manque : Choix rapide du média à télécharger, fonctions "Copier l'URL" et "Ouvrir avec [player]" (comme Video Download Helper)

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Please Support Mac OS X Rootless Mode Rated 5 out of 5 stars

It's hard to install programs in /usr/bin directory since Mac OS X 10.11 El Capitan. Please add scanning feature of /usr/local/bin or %PATH directory.

This review is for a previous version of the add-on (1.5.6.12.1-signed). 

Rated 4 out of 5 stars

It can't auto set suit name for media file when I get them.

This review is for a previous version of the add-on (1.5.6.12.1-signed).