--- src/org/gjt/jclasslib/util/GUIHelper.java	2011-02-27 18:32:51.000000000 +0100
+++ src/org/gjt/jclasslib/util/GUIHelper.java-gil	2011-06-15 23:34:11.113247993 +0200
@@ -105,7 +105,7 @@
         if (System.getProperty("os.name").startsWith("Windows")) {
             commandLine = "rundll32.exe url.dll,FileProtocolHandler " + urlSpec;
         } else {
-            commandLine = "firefox " + urlSpec;
+            commandLine = "_DEFAULT_BROWSER_ " + urlSpec;
         }
         try {
             Runtime.getRuntime().exec(commandLine);