MiniCal - a popup calendar for quick date reference.
I use a Mac an it does not have a built in calendar for those times when I need to see what days are coming up.
This extension is still in beta and more features are coming.
The code is based on the open source code made available here: https://code-boxx.com/simple-pure-javascript-calendar-events/
谷歌浏览器、其他Chromium内核的浏览器