How to Handle pop up windows?

Hi Guys!
First of all i'd like to say thanks to every one replying my questions they've been very helpfull on my programmings as well as enlarging my skills on this Qt programming thing!

Once again, about the same browser i'm working on, how i'm going to handle pop ups, cuz i've noticed my app doesn't open them! also i would like to save the state of my browser such that when a user logs in a web page with user name and a password, i want my app to remember them, should i use QMap? or There is another good way of handling that?...

Thanks