Avoid unresponsive script warning in xulrunner

Question

In link text someone is advicing to change dom.max_script_run_time to avoid the unresponsive script warning. When we do that firefox add user_pref("dom.max_script_run_time", 100); extra line. In order to do that in xulrunner I edited to the xulruenner.js file to add pref("dom.max_script_run_time", 100);

Can someone please confirm if its correct?

Or I need to write user_pref("dom.max_script_run_time", 100); But what I observe is, all of the pref in xulrunner are calling pref() e.g pref("xpinstall.dialog.progress.type.skin", "Extension:Manager"); pref("xpinstall.enabled", true);