Puntuado con 2 de 5 estrellas
The good: It can download all DASH formats! Very useful. A convenient button is provided.
The bad: It requires ffmpeg to even recognize audio at all, instead of showing raw streams. Once you configure ffmpeg, you have to restart the browser, but it doesn't tell you that. Once you configure ffmpeg, there's no way to download bare DASH video streams, you have to let it mux in audio. It forces either H264/AAC or WEBM/Vorbis on you, but the best WEBM/AAC is always the absolute top quality available. The button is impossible to move, it's permanently welded to the left of the address bar, instead of being able to move it to the main menu or elsewhere, and it's always there on non-YouTube sites. No right click options.
Enough problems that despite the fact that it works, unlike many plugins, I'll probably uninstall it and look for an alternative.