rem: pref.SetIntPref("mail.show_headers",0); 
add: gPrefs.SetIntPref("mail.show_headers",0); 
context: function MsgViewBriefHeaders(){    pref.SetIntPref("mail.show_headers",0);    MsgReload();    return true;}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/46dde148e9589ceac527f41cfa159be34caa33f3/mailWindowOverlay.js/buggy/mailnews/base/resources/content/mailWindowOverlay.js