Bug 418722 - Browse... button in pref window should work if pref is invalid

r=silver@warwickcompsoc.co.uk (James Ross)
a=NPOTB (ChatZilla Only)


git-svn-id: svn://10.0.0.236/trunk@251134 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/extensions/irc/xul/content/config.js

@@ -1384,7 +1384,16 @@ function pwin_onPrefBrowse(button)
     var rv;
     if (type == "folder")
     {
-        var current = getFileFromURLSpec(edit.value);
+        try
+        {
+            // if the user set the pref to an invalid folder, this will throw:
+            var current = getFileFromURLSpec(edit.value);
+        }
+        catch (ex)
+        {
+            // Just setting it to null will work:
+            current = null;
+        }
         rv = pickGetFolder(MSG_PREFS_BROWSE_TITLE, current);
     }
     else