Popup whitelisting improvements.

browser/base/content/pageReport.xul

@@ -44,7 +44,7 @@
               
   <script type="application/x-javascript" src="chrome://browser/content/pageReport.js"/>
  
-  <vbox>
+  <vbox flex="1">
     <description>
       &intro.label;
     </description>

browser/base/locale/pageReport.dtd

@@ -1,4 +1,4 @@
-<!ENTITY caption.label "Blocked Resource Report">
+<!ENTITY caption.label "Blocked Popups">
 
 <!ENTITY intro.label "The following sites were prevented from displaying 
 unrequested pop-up windows:">