For YouTube 1080p downloading, I use this Firefox add-on:
While it works fine, it has some annoyances, so I keep it disabled, and
only use it for 1080p. It doesn't require Firefox to reboot when you
YouTube seems to have changed something for their 480p videos, also.
This is what one add-on writes about 1080/480p videos:
- 480p and 1080p are no longer available as standalone videos
downloaded from youtube.com. YouTube switched to adaptive streams, and
uses separate files for video and audio, which need to be merged to get a