Dependencies. You want to toggle image loading (opera's original killer feature), that uses the wibble library witch needs the flooble dll. So you get a message

Dependencies. You want to toggle image loading (opera's original killer feature), that uses the wibble library witch needs the flooble dll. So you get a message telling you a new flooble library is available everytime you start to browse. The plugins generally don't need a restart - but under windows the default for installer examples is to restart and the guy that did the flooble binary packaging didn't bother to change it.