--- a/widget/windows/nsClipboard.cpp
+++ b/widget/windows/nsClipboard.cpp
@@ -831,17 +831,17 @@ nsClipboard :: FindURLFromLocalFile ( ID
     }
 
     if ( IsInternetShortcut(filepath) ) {
       free(*outData);
       nsAutoCString url;
       ResolveShortcut( file, url );
       if ( !url.IsEmpty() ) {
         // convert it to unicode and pass it out
-        nsDependentString urlString(UTF8ToNewUnicode(url));
+        NS_ConvertUTF8toUTF16 urlString(url);
         // the internal mozilla URL format, text/x-moz-url, contains
         // URL\ntitle.  We can guess the title from the file's name.
         nsAutoString title;
         file->GetLeafName(title);
         // We rely on IsInternetShortcut check that file has a .url extension.
         title.SetLength(title.Length() - 4);
         if (title.IsEmpty())
           title = urlString;