I have been using this browser extension for arrowed 3 weeks now and it has been working perfectly until yesterday (02/08/2024) and then i noticed certain videos are not downloading (as MP4) even videos I had downloaded recently.(also yes I did: refresh the page, make sure the link is plain meaning no seconds skipped in the video and detached form any play list, reinstaled this extenshin and I have even restrted my computer many times) I would assume this is just that youtube has changed the way that videos are encrypted and the developers haven't had time to change the softwere to adapt to this change but if will happen every now and again I think Its somthing to be aware of.