This used to work so well, since the June update 2019, it simply will not download anything. I waited and tried many times but there is no content at all in the download files.
Pls. update to latest v 15.7, whenever youtube changes code every downloader out their breaks. This time it took longer for me to fix and then ever longer for mozilla to review and approve the update. If you find the addon working again, pls. re-rate the extension :)
