I am using firefox 3.0 in rhel6.2.Wwhen I press F11, the fullscreen mode appears, but if the mouse pointer goes to the top of the screen at fulscreen mode then the task bar appears. I want to avoid the appearance of this bar. I have searched the net but got the answers how to show them in full screen. Please suggest me the settings I need to do.
Go to ~/.mozilla/firefox/<profile folder>/chrome/ (check in profiles.ini which profile you are using), and put this piece of code in userChrome.css (create one if it doesn't exist)
/* only needed once */
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
#fullscr-toggler { display:none!important; }