Create a new bookmark as described above and paste this code:
A bookmarklet is a bookmark that contains JavaScript code instead of a URL. You can create a "Refresh Link" in 10 seconds. chrome page refresh shortcut link
Search the Chrome Web Store for or "Easy Auto Refresh" . These extensions place a small icon next to your address bar that lets you set a timer. They are more reliable for long sessions because they are not blocked by Chrome’s anti-abuse policies. Create a new bookmark as described above and