There are many softwares that help download netflix videos to pc like steamfab, flixicam etc. The problem I encounter with them is that in order to download videos using them, you need to log in using email and password. I want to do this thing using cookies(whether using an app or programatically). I wonder how these apps are able to do these things in the backend and that can I, using the same procedure, download netflix videos by logging in with the help of cookies. There are so many apps for this but they all requrie to log in which means that this method which these apps use must be well known.
As I said, I tried to find app that could help login with cookies and download, but all the apps have this same problem requiring email and password. I just want to know the methods these apps use, and how to manipulate those methods or these apps to login with cookies.