Firefox displaying regular site (address), something like: http://www.monitor.hr/, and everything is fine. Next, I write something that do not exist (site do not exist, or it is temporary out of function, etc). So, in Firefox address bar I will write something as: http://www.news-bar.hr (at this very moment, I know this site is under DOS attack, and site is not available). But my Firefox is still presenting "last correct site" ie www.montior.hr. This behaviour is wrong. Instead "last correct site", Firefox must display message "Server not found", or something simmilar. Same behaviour exist if I start from "blank-page". I write some "wrong address" into address bar, and after some time, page is still blank, again there is no "server not found" info.