I've seen many ways of doing this but never got a real answer. I'm trying to achieve something similar to FVD Firefox downloader plugin. When you load a page you get access to the videos and images and etc... But I can't read embedded images and videos. I don't know how. I want to know how FVD achieved my solution, not a code. But it would be great if u shown a example with comments.
P.S: I'm quite new to the web coding foundation + I'm using htmlagilitypack.
What I have tried:
I did a lot of things, can't paste it all here but from my search I see people using different methods for different websites, like one method doesn't work for all webs, it only works for one. Like how did FVD achieve my solution? getting all the videos/etc.. and embedded files on every web load. I'm sure it will be long and complicated, so I want to know how they achieved this instead of a code.