Is Clock safe?

Adds a customizable clock to the browser toolbar and web pages.

This extension displays the current time using a digital or mechanical clock, with options to show details such as date, day of the week, time zone, week number, and Unix time. It uses time data from your system settings and can open the developer’s web application for related tools such as alarms, calendars, stopwatches, timers, and countdowns. It also requires periodic activation with a free key from the developer’s website.