Bug 345572 - In Options window tab Main bottom border line missing. r=mconnor

browser/components/preferences/main.xul

@@ -199,7 +199,7 @@
       <hbox id="checkDefaultBox" align="center" flex="1">      
         <checkbox id="alwaysCheckDefault" preference="browser.shell.checkDefaultBrowser"
                   label="&alwaysCheckDefault.label;" accesskey="&alwaysCheckDefault.accesskey;"
-                  flex="1"/>
+                  flex="1" style="height: &alwaysCheckDefault.height;"/>
         <button id="checkDefaultButton"
                 label="&checkNow.label;" accesskey="&checkNow.accesskey;"
                 oncommand="gMainPane.checkNow()"

browser/locales/en-US/chrome/browser/preferences/main.dtd

@@ -35,5 +35,13 @@
 
 <!ENTITY alwaysCheckDefault.label      "Always check to see if &brandShortName; is the default browser on startup"><!--XXX-->
 <!ENTITY alwaysCheckDefault.accesskey  "y">
+
+<!-- LOCALIZATION NOTE (alwaysCheckDefault.height):
+  There's some sort of bug which makes wrapping checkboxes not properly reflow,
+  causing the bottom border of the groupbox to be cut off; set this
+  appropriately if your localization causes this checkbox to wrap.
+-->
+<!ENTITY alwaysCheckDefault.height  "3em">
+
 <!ENTITY checkNow.label             "Check Now">
 <!ENTITY checkNow.accesskey         "N">