This add-on works most cases, but doesn't catch most on twitter in these days. Why?
And adds QR codes on Youtube videos.

When I initially found this app, it worked flawlessly. But lately, I am only able to save maybe 50% of the videos I try successfully. I seldom can save a video correctly on Facebook and often times can't save videos I really want on Youtube. Always looks like it's saving the video but often times the video won't play or it'e not the video I chose to download.

exelente

Schon sehr lange arbeite ich mit diesem Video DownoadHelper und bin nach wie vor sehr zufrieden

good

Doesn't work on Firefox android

è molto facile da usare, si porta facilmente su diversi computer in modo automatico con il sync di firefox

excelente, a melhor que já usei, é muito rápida.

So far a good plugin but now it wants to install a Companion App (maybe due to new restrictions in firefox) an they newly add a Watermark and want 18 EURO!!! for non-watermark version!

Sorry - there are too many plugins doing the same for free.

I'm out!

It is a wonderful tool for downloading video, i had tried many tools in explorer but was unable to do so but this is so simple and effective. Worth giving more then 5 start to this software

You are required to download an additional external program to download any video. Also a large, extremely obtrusive watermark is overlayed on video if you don't put a quarter in to play. I do not recommend this extension.

Nella marea di prodotti online che si propongono agli utenti, DownloadHelper alla fine resta l'unico veramente affidabile e capace di convincerti senza fatica a disinstallare tutte le altre applicazioni definibili veramente "webspazzatura".

Can it download musics?

Best app ever for downloading and converting videos from anywhere.

When I try to install this add-on from within Firefox, I am prompted to install Firefox, which I already have. It’s an infinite loop.

This is by far the best video downloader addon in Firefox, in my opinion.

But it also tricks you into paying for the companion app. Why do I say "tricks" - because it doesn't say in its description or before installing the companion app, that you will have to pay or else there will be a BIG watermark on the converted videos. You will need to use the convert feature and the companion app to download 1080 or higher resolution videos.

I used to be a fan of this plugin, unfortunately not anymore. This plugin stays installed, untill a good alternative is found (which I thinks is going to be hard to find!)