===I want to be informed without having Sunbird in my task-bar===
Here are a A few links you can have a look at: SunTray:<br>http://users.dart.net.au/~srgeorg/ iCalMinder:<br>* [http://www.brownbearsw.com/ical/tricks.html#iCalMinderiCalMinder] examples of iFrame MozCalTray:<br>* [http://devminimizetotray.tech-ninemozdev.netorg/ MinimizeToTray:<br>] software* [http://minimizetotrayusers.dart.mozdevnet.orgau/~srgeorg/SunTray] software.
===TB / FF crashes / shows an error after installing Calendar===