Mozilla disable the pop up window
 

I just read on www.linuxtoday.com that in new version on Mozilla it is possible to diable pop up window .

Here is quote from the article: " Mozilla has a new method for disabling popup and popunder windows. It is now possible to disable the JavaScript window.open() method when it is not called as a result of a mouse click. When the dom.disable_open_click_delay pref is set to a nonzero number, window.open will fail when called more than that number of milliseconds after a mouse click. Setting this pref (instructions here) should turn off pop-up and pop-under ads that use the onload handler of <img> tags to work around our previous window.open() filter. (Bug 92955)

user_pref("dom.disable_open_click_delay", 1000);


I really don't know how can I do that. Does someone has already disable it?

Thanks

select edit>preferences>advanced>scripts and windows. uncheck "open unrequested windows"