diff --git a/xpfe/communicator/resources/content/contentAreaUtils.js b/xpfe/communicator/resources/content/contentAreaUtils.js
index bc70205186e7..e7800f158ca3 100644
--- a/xpfe/communicator/resources/content/contentAreaUtils.js
+++ b/xpfe/communicator/resources/content/contentAreaUtils.js
@@ -788,9 +788,9 @@ function getDefaultFileName(aDefaultFileName, aNameFromHeaders, aDocumentURI, aD
   }
   
   if (aDocument) {
-    var docTitle = validateFileName(aDocument.title).replace(/^\s+|\s+$/g, "");
+    var docTitle = GenerateValidFilename(aDocument.title, "");
 
-    if (docTitle != "") {
+    if (docTitle) {
       // 3) Use the document title
       return docTitle;
     }
@@ -823,22 +823,6 @@ function getDefaultFileName(aDefaultFileName, aNameFromHeaders, aDocumentURI, aD
   return "index";
 }
 
-function validateFileName(aFileName)
-{
-  var re = /[\/]+/g;
-  if (navigator.appVersion.indexOf("Windows") != -1) {
-    re = /[\\\/\|]+/g;
-    aFileName = aFileName.replace(/[\"]+/g, "'");
-    aFileName = aFileName.replace(/[\*\:\?]+/g, " ");
-    aFileName = aFileName.replace(/[\<]+/g, "(");
-    aFileName = aFileName.replace(/[\>]+/g, ")");
-  }
-  else if (navigator.appVersion.indexOf("Macintosh") != -1)
-    re = /[\:\/]+/g;
-  
-  return aFileName.replace(re, "_");
-}
-
 function getNormalizedLeafName(aFile, aDefaultExtension)
 {
   if (!aDefaultExtension)
diff --git a/xpfe/communicator/resources/content/utilityOverlay.js b/xpfe/communicator/resources/content/utilityOverlay.js
index ec003fa43097..236c5f88e71b 100644
--- a/xpfe/communicator/resources/content/utilityOverlay.js
+++ b/xpfe/communicator/resources/content/utilityOverlay.js
@@ -413,12 +413,27 @@ function GenerateValidFilename(filename, extension)
 {
   if (filename) // we have a title; let's see if it's usable
   {
-    // clean up the filename to make it usable
-    filename = filename.replace(/\"/g, "");  // Strip out quote character: "
-    filename = filename.replace(/(^\s+)|(\s+$)/g, ''); // trim whitespace from beginning and end
-    filename = filename.replace(/[ \.\\@\/:]/g, "_");  //Replace "bad" filename characters with "_"
+    // clean up the filename to make it usable and
+    // then trim whitespace from beginning and end
+    filename = validateFileName(filename).replace(/^\s+|\s+$/g, "");
     if (filename.length > 0)
       return filename + extension;
   }
   return null;
 }
+
+function validateFileName(aFileName)
+{
+  var re = /[\/]+/g;
+  if (navigator.appVersion.indexOf("Windows") != -1) {
+    re = /[\\\/\|]+/g;
+    aFileName = aFileName.replace(/[\"]+/g, "'");
+    aFileName = aFileName.replace(/[\*\:\?]+/g, " ");
+    aFileName = aFileName.replace(/[\<]+/g, "(");
+    aFileName = aFileName.replace(/[\>]+/g, ")");
+  }
+  else if (navigator.appVersion.indexOf("Macintosh") != -1)
+    re = /[\:\/]+/g;
+  
+  return aFileName.replace(re, "_");
+}