Bug 1101978 Don't overload strings r=Ratty

suite/common/bindings/notification.xml

@@ -2179,8 +2179,8 @@
               message = this._stringBundle.GetStringFromName("missingpluginsMessage.title");
               if ("goPreferences" in window) {
                 buttons = [{
-                  label: this._stringBundle.GetStringFromName("popupWarningButton"),
-                  accessKey: this._stringBundle.GetStringFromName("popupWarningButton.accesskey"),
+                  label: this._stringBundle.GetStringFromName("missingpluginsMessage.button.label"),
+                  accessKey: this._stringBundle.GetStringFromName("missingpluginsMessage.button.accesskey"),
                   popup: null,
                   callback: function() {
                     goPreferences("scripts_pane");

suite/locales/en-US/chrome/common/notification.properties

@@ -16,6 +16,8 @@ carbonfailurepluginsMessage.button.label=Restart in 32-bit mode
 carbonfailurepluginsMessage.button.accesskey=R
 
 missingpluginsMessage.title=Additional plugins are required to display all the media on this page.
+missingpluginsMessage.button.label=Preferences
+missingpluginsMessage.button.accesskey=P
 
 blockedpluginsMessage.title=Some plugins required by this page have been blocked for your protection.
 blockedpluginsMessage.infoButton.label=Details…