rem: flavourSet.appendFlavour("text/nsmessageOrFolder"); 
add: flavourSet.appendFlavour("text/nsmessageOrfolder"); 
context:   getSupportedFlavours: function ()    {      var flavourSet = new FlavourSet();      flavourSet.appendFlavour("text/x-moz-url");      flavourSet.appendFlavour("text/nsmessageOrFolder");      flavourSet.appendFlavour("application/x-moz-file", "nsIFile");      return flavourSet;    }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/7e6642be6819dda3037b737dbb9c1b49b2bf28ee/MsgComposeCommands.js/buggy/mailnews/compose/resources/content/MsgComposeCommands.js