i tried using google-chrome a while back.. at the time, i didn't see any settings for tightening up the browser's security.. now, it has settings for tightening up the security..
one stupid thing, chrome has a setting for blocking third-party cookies, but it won't allow "exceptions", if needed.. that is stupid.. i know of one website where you have to use a "third-party cookie" in order to be able to login..
as far as "disabling firefox's security features", i would say that it doesn't have any, except for an option to disable javascript, globally, with no "exceptions", which is stupid.. without the "noscript" addon, which allows for tightening up firefox's security, firefox would be garbage, in my book..
the article in question brought out some interesting things, for me...