add:  InlineSpellCheckerUI.enabled = false;  
context: function ComposeUnload(){  dump("\nComposeUnload from XUL\n");  EditorCleanup();  RemoveMessageComposeOfflineObserver();  RemoveDirectoryServerObserver(null);  if (gCurrentIdentity)    RemoveDirectoryServerObserver("mail.identity." + gCurrentIdentity.key);  if (gCurrentAutocompleteDirectory)    RemoveDirectorySettingsObserver(gCurrentAutocompleteDirectory);  if (gMsgCompose)    gMsgCompose.UnregisterStateListener(stateListener);  if (gAutoSaveTimeout)    clearTimeout(gAutoSaveTimeout);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/d6625887ea485254a660bc90c2a1fa8d5e8603a3/MsgComposeCommands.js/clean/mail/components/compose/content/MsgComposeCommands.js