One of the few add-ons I will not use YouTube without.
My hard drives hate this extension just about as much as I love it because I fill them with random crap I rarely ever watch offline.

But I love the extension because of the freedom it gives me; the freedom to liberate any piece of video from Google's potemkin village YouTube has turned into over the decades.

The developer seems to be superhuman in their ability to keep up with YouTube's attempts to foil third-party downloaders.

Others come and go, this is the real-deal so I gladly activated the PRO feature too.