there is no alert when time is over。

This one is a quite good utility extension.
Helps me to track my work offs.

Suggestion - can we add a browser notification, once the time is up? This will help to notify me even if I am not looking at the screen.

really good one!!

I was wondering how to monitor my time that I spend on different tasks. This add-on really helped me to realize that time is in OUR hands and It's all about how we manage our timings in a better way.

To be precise, it's an awesome extension!!!!