firefox禁止弹出“Prevent this page from creating addtional dialogs”

firefox老弹出“Prevent this page from creating addtional dialogs”的确认框，特烦人，解决办法如下：
Copy the preference name dom.successive_dialog_time_limit
Open about:config
Right-click in the preferences area and choose New > Integer
Paste the preference name and click OK
Then enter 0 and click OK

原文地址：
http://forums.mozillazine.org/viewtopic.php?p=10737317#p10737317