l love this app its really awesome

Excellent on Firefox 64.0.2 (64bits) with 1080 60fps videos, downloads them as *.mkv

Great stuff. Been using it for ages, downloads just about any video!

Won't work on Youtube and several other sites after updates to windows in October. Worked like a charm for at least 3 years before, sing Windows 10. They fixed it around the first of the year and it works very well on most sites now.