A extensão Video DownloadHelper é simplesmente sensacional, possibilita a gravação de vídeos diretamente da internet e evita a perda de conteúdo pelo usuário. Recomendo a todos a utilização do Mozila e das extensões do programa. Nota 10
I have installed this addon, then I had to install required desktop software, I waited for many minutes of "aggregating" (twice - 1st time for... I don't know what, 2nd for downloading), and finally I have blurry video with QRcode. Great.
I have been using Video Dowloadhelper for several years and it has been a very useful addon. It's easy to use and does exactly what it needs to do: download embedded videos. It's never bugged me for money or made me feel like something is going on in the background that is not legit.