blocking problem v2.4

when other softwares trying to use firefox and if i dont want them to do so ,i say block and comodo does what i say.BUT after blocking the unwanted program i cant use firefox.and belive me there are lots of programs which want to use firefox unnecessarly.may be there is a smal tweak or a patch about it or may be there is just a problem with my pc.thanks for reading it.(unwanted programs dont need any internet conection.they just like calling home)