Im using faceniff 9 and it isnt capturing anything. I have tried on amazon, Facebookand twitter. It could be my wifi since im using a different one. Im on my sisters which also has a guest wifi that is locked.
you need to be on the same WIFI connection to be able to hijack the session.
Anyways... i just updated miui on my dx and has old hijacked sessions which work but is complicated.
What device are you using?