Used e.ggtimer for Windows?
The Download Now link will prompt a local download of the Google Chrome extension. To install the extension directly, open the file using your Chrome browser.
Developer’s Description
Setting short deadlines is perhaps the best way to maintain focus and actually get some work done. The problem is, using a clock on the wall takes you out of your zone, and most countdown software is convoluted, not integrated in the browser or just doesn't work particularly well.
All you have to do is click on the egg icon, type the number of minutes you want the countdown to last for and click on the "Set Countdown" button. The countdown will open in a new tab and the magic begins.
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