283871 - password manager does not resize vertically... add flex to content box. Patch by Mook <mook.moz@gmail.com> r=me

toolkit/components/passwordmgr/resources/content/passwordManager.xul

@@ -49,7 +49,7 @@
             title="&windowtitle.label;"
             persist="width height screenX screenY">
 
-  <prefpane id="SignonViewerDialogPane">
+  <prefpane id="SignonViewerDialogPane" flex="1">
     <script src="chrome://passwordmgr/content/passwordManager.js"/>
 
     <stringbundle id="signonBundle"