Bug 347472 - When opening a file, the filename isn't truncated. Patch by Michael Wu <michael.wu@mozilla.com>, r=mconnor

toolkit/mozapps/downloads/content/unknownContentType.xul

@@ -67,7 +67,7 @@
     <separator class="thin"/>
     <hbox align="start" class="small-indent">
       <image id="contentTypeImage"/>
-      <vbox>
+      <vbox flex="1">
         <description id="location" class="plain" crop="start" flex="1"/>
         <separator class="thin"/>
         <hbox align="center">