This extension has worked perfectly for me on my older mac, and would recommend it to anyone. If I could, I would donate more than I did when I first tried it, but have been unemployed for over a year. IF my side hustle works, I'll add more.
Update: Have been using this for almost a year, and it's still great. In fact, gonna leave another donation for this developer, please consider donating as well!

So I've donate twice to this, and it no longer works for me. I've got the latest version, but no download button, and clicking the extension just gives a forever "downloading link" message.