I noticed that some video streaming services are using HTS, some weird tech that is not file based, which makes it quite difficult to download those files, even

I noticed that some video streaming services are using HTS, some weird tech that is not file based, which makes it quite difficult to download those files, even downloadvideohelper won't do it directly, you need some third party executable. The web is mostly open, but there are still things out there built to explicitely prevent users from doing what they want, and it seems that even firefox supports this tech.