If you enter a command (starts with "/") that ChatZilla doesn't understand, then it can try "guessing" by sending the command to the server. You can turn this off if you don't want ChatZilla to try this.
Si introduce una orden (empieza con "/") que ChatZilla no comprende, puede intentar "adivinarlo" enviando la orden al servidor. Puede desactivar esto si no quiere que ChatZilla haga esta prueba.