This extension should be supported by Firefox because this extension is the #1 reason for using the Firefox browser.
IF YOU OWN A COMPUTER, YOU NEED THIS EXTENSION!
Without this extension, I could be a productive member of society instead of downloading everything I can get my fingers on, endlessly filling up hard drives with downloads that I don't have time to watch because I'm too busy looking for something new to download!
If this developer ever dies, the internet will die with him!
OK, it isn't perfect. Nothing is. Every time THE MAN changes the way they stream, this developer springs into action to fix, adapt, and get things back on track.
I especially like that Facebook now works, where I used to have to go to another site in a 3-step process to convert to a downloadable format.
And I can't say that I'm thrilled with the new interface, but I'm getting used to it and it's much easier to adjust to than going from MSO to LibreOffice.
Every time I have problems, I just wait a couple of days and it gets fixed.
This is literally the BEST video downloader in history!