add: case "cmd_canHaveFilter": 
context:    supportsCommand: function(command)	{		switch ( command )		{			case "cmd_close":			case "cmd_reply":			case "button_reply":			case "cmd_replySender":			case "cmd_replyGroup":			case "cmd_replyall":			case "button_replyall":			case "cmd_forward":			case "button_forward":			case "cmd_forwardInline":			case "cmd_forwardAttachment":			case "cmd_editAsNew":			case "cmd_delete":      case "cmd_undo":      case "cmd_redo":      case "cmd_killThread":      case "cmd_watchThread":			case "button_delete":			case "cmd_shiftDelete":      case "button_print":			case "cmd_print":		  case "cmd_printSetup":			case "cmd_saveAsFile":			case "cmd_saveAsTemplate":			case "cmd_viewPageSource":			case "cmd_reload":			case "cmd_getNewMessages":      case "button_getNewMessages":      case "cmd_getMsgsForAuthAccounts":			case "cmd_getNextNMessages":			case "cmd_find":			case "cmd_findAgain":      case "button_mark":			case "cmd_markAsRead":			case "cmd_markAllRead":			case "cmd_markThreadAsRead":			case "cmd_markAsFlagged":      case "button_file":			case "cmd_file":      case "cmd_synchronizeOffline":			case "cmd_downloadFlagged":			case "cmd_downloadSelected":			case "cmd_settingsOffline":			case "cmd_nextMsg":      case "button_next":			case "cmd_nextUnreadMsg":			case "cmd_nextFlaggedMsg":			case "cmd_nextUnreadThread":			case "cmd_previousMsg":			case "cmd_previousUnreadMsg":			case "cmd_previousFlaggedMsg":				return true;			default:				return false;		}	},
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/14d4a3683930c90c081ad7c2ce91f0f593bb1126/messageWindow.js/buggy/mailnews/base/resources/content/messageWindow.js