--- mozilla/browser/app/profile/firefox.js.url_handler	2004-11-05 12:10:05 +0300
+++ mozilla/browser/app/profile/firefox.js	2005-01-08 08:02:42 +0300
@@ -296,16 +296,17 @@ pref("network.protocol-handler.warn-exte
 // the browser will respond to openURL commands for all URL types.
 // It will also try to open link clicks inside the browser before
 // failing over to the system handlers.
 pref("network.protocol-handler.expose-all", true);
 pref("network.protocol-handler.expose.mailto", false);
 pref("network.protocol-handler.expose.news", false);
 pref("network.protocol-handler.expose.snews", false);
 pref("network.protocol-handler.expose.nntp", false);
+pref("network.protocol-handler.app.mailto", "/usr/bin/url_handler.sh");
 
 // Default security warning dialogs to show once.
 pref("security.warn_entering_secure.show_once", true);
 pref("security.warn_entering_weak.show_once", true);
 pref("security.warn_leaving_secure.show_once", true);
 pref("security.warn_viewing_mixed.show_once", true);
 pref("security.warn_submit_insecure.show_once", true);