Notification messages

I constantly get notifications of   'vulnerability attacks blocked' and 'connection attempts blocked'.  How can I stop these notifications from popping up.  They are annoying and I must click on them to get them to disappear.

Thanks Ryan but I had originally done all things you mention with no result.  Per your suggestions I revisited all settings and all notifications were found to still be de-selected.  For some reason notifications can not be disabled.  I am aware that I can simply close the notification window but that is the problem.  It is a nuisance to have to continually close these windows. I to get them often.

I constantly get notifications of   'vulnerability attacks blocked' and 'connection attempts blocked'.  How can I stop these notifications from popping up.  They are annoying and I must click on them to get them to disappear.