Block PopUp Flash Site Firefox

When you browsing in the Internet you maybe see a popups windows in Flash form when you click a link, if you annoy with this popups you can block them this something you can do in your firefox browser. first go to Address bar and type about:config to open mozilla config. if you see a warning like this
firefox warranty, you can uncheck the Show this warning next time and click the bottom i'll be careful, i promise ! realy be careful okey after click the botom the config will show.

Next Right click in the window select New | Integer

enter the preference name with this privacy.popups.disable_form_plugins and then the value is :

0:for no block
1:Just Like another popup
2:totaly Block

If you Finnish restart your firefox. the are a lot of config in here you can find the fuction in this website.