open the Firefox browser and type about:config in the location bar a big list of settings appears and you can doubleclick any of these to change its value. PLEASE DONT CHANGE ANY YOU ARE NOT SURE OF The twentieth setting in the list is called "alerts.height" If you want to know what that does go to the Mozilla knowledge-base for firefox here and type it in the search box - same for any you are thinking of changing http://kb.mozillazine.org/Knowledge_Base
Wow !!!!! F!@^!ng HELL !!!! http://en.wikipedia.org/wiki/The_Book_of_Mozilla http://en.wikipedia.org/wiki/About: