Check4Change - 这个扩展应该很多人会喜欢吧？

Check4Change

Check4Change (aka C4C) is a simple extension that allows you to periodically check a web-page for updates.

Have you ever found yourself pressing the reload button frantically, waiting for something in the web page to change?
Well reload no further! with C4C you'll just mark the relevant text, set a time interval (e.g. every 1 minute), and you're done!