add:   gAutocompleteSession.defaultDomain = defaultDomain; 
context: function setDomainName(){  if (gCurrentIdentity.autocompleteToMyDomain)  {    var emailAddr = gCurrentIdentity.email;    var start = emailAddr.lastIndexOf("@");    gAutocompleteSession.defaultDomain = emailAddr.slice(start + 1, emailAddr.length);  }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/92782be5d6019ea0a8e575af1d6a03c9d9791a14/MsgComposeCommands.js/clean/mail/components/compose/content/MsgComposeCommands.js