Assegnate 4 su 5 stelle

only 4 stars as theres no option to show the seconds.

Will that be an update soon?

Questa recensione riguarda una versione precedente (0.4.2.1-signed) del componente aggiuntivo. 

sorry no update, when you want seconds in the Display i suggest you use Simple Timer.
https://addons.mozilla.org/de/firefox/addon/simple-timer/?src=search