Bug 116441 [clickSelectsAll] should not trigger if click is after end of URL

patch by neil@parkwaycc.co.uk r=jag sr=bz

xpfe/browser/resources/content/navigator.js

@@ -1732,7 +1732,7 @@ function URLBarMouseDownHandler(aEvent)
 
 function URLBarClickHandler(aEvent)
 {
-  if (!gIgnoreClick && gClickSelectsAll && gURLBar.selectionStart == gURLBar.selectionEnd)
+  if (!gIgnoreClick && gClickSelectsAll && gURLBar.selectionStart == gURLBar.selectionEnd && gURLBar.selectionStart < gURLBar.value.length)
     gURLBar.select();
 }