I have a user who logged into facebook on her work network and now the username and password field auto populates every time she goes to the page. It's happening on Chrome, IE 9 and Firefox. I have disabled all add ons as well as the auto fill feature in options for the various browsers. It's now happening on another computer. It's not just facebook, it now logs onto any web page that a username and password are entered into. It does this as soon as you get to the home page of the sites.