Auto refreshes a page at a specified interval.
Set the default time and have separate timers for all your tabs.
Enjoy the convenience!
This extension combines the most necessary functions in minimalistic execution - nothing superfluous. Set the time, press start.

For each of the pages you can set your own time and the pages will be refreshed separately at different time intervals. Set your timer time as the default. To stop the timer - just press the stop button.
Page Auto Refresh - Chrome Extension, 2017