Not part of the seamonkey build.

Bug #28327 --> Make the Thunderbird remote content blocker more agressive about blocking remote requests
for arbitrary things such as iframes, etc. instead of just focusing on image requests.

mailnews/base/src/nsMsgContentPolicy.cpp

@@ -184,7 +184,7 @@ nsMsgContentPolicy::ShouldLoad(PRUint32          aContentType,
       *aDecision = mAllowPlugins ? nsIContentPolicy::ACCEPT :
                                    nsIContentPolicy::REJECT_TYPE;
   }
-  else if (aContentType == nsIContentPolicy::TYPE_IMAGE)
+  else 
   {
     PRBool isFtp = PR_FALSE;
     rv = aContentLocation->SchemeIs("ftp", &isFtp);