how to tighten up FireFox security

"There are now a couple of security spoofs out there for firefox. Unlike IE there is an easy way to catch them that is not often mentioned. Simply type in about:config into the address bar. Then search for and change these settings to TRUE recommended: disable_window_open_feature.location disable_window_open_feature.status disable_window_open_feature.titlebar disable_window.status_change optional: disable_window_move_resize disable_window_open_feature.close disable_window_open_feature.directories disable_window_open_feature.menubar disable_window_open_feature.minimizable disable_window_open_feature.personalbar disable_window_open_feature.resizable disable_window_open_feature.scrollbars disable_window_open_feature.toolbar "