Tweak pref settings.

browser/app/profile/all.js

@@ -300,7 +300,7 @@ pref("javascript.options.strict",           false);
 pref("javascript.options.showInConsole",    false);
 
 // popups.policy 1=allow,2=reject
-pref("privacy.popups.policy",               2);
+pref("privacy.popups.policy",               1);
 pref("privacy.popups.usecustom",            false);
 
 // advanced prefs

browser/app/profile/firebird.js

@@ -300,7 +300,7 @@ pref("javascript.options.strict",           false);
 pref("javascript.options.showInConsole",    false);
 
 // popups.policy 1=allow,2=reject
-pref("privacy.popups.policy",               2);
+pref("privacy.popups.policy",               1);
 pref("privacy.popups.usecustom",            false);
 
 // advanced prefs

browser/base/content/browser.js

@@ -205,8 +205,15 @@ function RegisterTabOpenObserver()
   service.addObserver(observer, "open-new-tab-request", false);
 }
 
+function PopupBlocked(event)
+{
+  alert("A popup was blocked.");
+}
+
 function Startup()
 {
+  addEventListener("DOMPopupBlocked", PopupBlocked, false);
+
   // init globals
   gNavigatorBundle = document.getElementById("bundle_browser");
   gBrandBundle = document.getElementById("bundle_brand");