rem: dirTree.treeBoxObject.selection.select(0); ChangeDirectoryByURI(GetSelectedDirectory()); 
add:   try { dirTree.treeBoxObject.selection.select(0); ChangeDirectoryByURI(GetSelectedDirectory()); } catch (ex) { ChangeDirectoryByURI(kPersonalAddressbookURI); gAbResultsTree.focus(); } 
context: function SelectFirstAddressBook(){  dirTree.treeBoxObject.selection.select(0);  ChangeDirectoryByURI(GetSelectedDirectory());}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/3b6f4e635716f173e1524bebc92961f5c5d39894/abCommon.js/clean/mailnews/addrbook/resources/content/abCommon.js