The settings for Warning Messages was removed from the Security section in Firefox 4, those settings need to be accessed thru '''''about:config''''' now. It sounds like you are looking for the last one in the list below "<u>Former settings in Firefox 3.6 on the Security panel</u>" See: http://kb.mozillazine.org/About:config #type '''about:config''' in the URL bar and press the Enter key. #If you see a warning, accept it (promise to be careful) #Filter = '''security.warn_''' #double-click the pref in the lower panel on the about:config display to toggle to true or false according to the descriptions in the following (scroll down to security.warn to see those particular prefs) #*http://kb.mozillazine.org/About:config_entries#Security. <u>Former settings in Firefox 3.6 on the Security panel</u><br /> ''Show a warning dialog when:'' *''I am about to view an encrypted page'' **pref: security.warn_entering_secure *''I am about to view a page that uses low-grade encryption'' **pref: security.warn_entering_weak *''I leave an encrypted page for one that isn't encrypted'' **pref: security.warn_leaving_secure *''I submit information that's not encrypted'' **pref: security.warn_submit_insecure *''I'm about to view an encrypted page that contains some unencrypted information'' **pref: security.warn_viewing_mixed '''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.'''