id summary reporter owner description type status priority milestone component version resolution keywords cc 6224 Some browsers seem to ignore editor.on('mode') if startupMode : 'source' is set Tony "Unsure if the title correctly describes it but I've attached a test case. Basically, when ckeditor is set to use startupMode : 'source', opera and firefox won't recognise that an editor.on( 'mode' ) event has occured. Chrome will. I've attached a plugin and test page which reproduces it. The test.html file goes in the _samples directory and the testplugin folder goes in the plugins directory. In Chrome you will see an alert every time you refresh the test.html page, in firefox you will usually see no alert but sometimes it appears and in opera there is no alert ever. Should startupMode : 'source' be registering as an editor on mode switch? I was looking for that feature but found this bug." Bug closed Normal General 3.4 worksforme