I've only been using this since like 2012 LOL. An experienced user can download videos from all except the most encrypted embedded videos, works on a decent amount of video and pornography sites. Sometimes you have to select streaming download. I've had a problem with it where videos only download 14 seconds of footage even if its 10+ minutes. Most likely superior encryption.

好用，但转换速度跟下载速度可以再快一点就完美了！

非常好

非常好

Worked great in the past, save some strangeness a few versions back with live streams. Now Ubuntu has dropped support for the deb package for Firefox, and the Companion App refuses to work with either Snap or Flatpak installations.

Очень полезное дополнение. Пользуюсь больше года.

Muito bom baicha e coverte para MP3 ou formatos de video e outros formatos de som

Best working downloader

Easy to use and works just fine with minimum configuration. Indispensable for all users of Firefox!

好用,好程式,可以下載很多,不好下戴的影片

Excelente software para bajar videos.

非常好用，谢谢，如果是人民币我就金钱支持了！作者空闲的时候可以考虑更新插件，毕竟9个月没更新了！

Very good Add on!