AFAIK, it's the only usually-reliable extension one can use to DL in-page content. Lately it's had trouble capturing some streaming video, which was always one of its particular specialties. But you have to appreciate what a cat-and-mouse game this must be, as content hosts and download-utilities devs keep trying to stay ahead of each other.
As soon as VDH catches back up, I'll be glad to return here and add a 5th star. Meanwhile, thanks for the great work, guys!

Great, a lifesaver!

I love it! It is easy to use and reliable.

One of the best add ons ever made. When platforms charge money to let you download content, this addon returns the internet how it should ever been.

So far it's been flawless, lots of options and you can download to whatever directory you want. Excellent Extension

Best video screen grabber I've tried.

It still can't download everything, but it expands and is the best I have used so far

This is amazing greatly useful, and heavily recommended, I was able to download videos of my course online with this wonderful Add-on :)

Muito bom! Agora posso salvar meus videos de forma fácil e rápida.