I'm interested in both Stylus & Video DownloadHelper. For capturing video downloads i used to use IDM's extension. But it's not free to use. Now I'll have to give this a try.
Video download helper is a bit funny with youtube videos, iirc it adds a water mark to any you dl, as it wants you to donate, if you don't wanna donate just get ytdlp gui to get your YouTube videos
Video download helper works great for other videos that are sometimes hard to find the url of