Reload the page to not kill the session using GreaseMonkey

reload_page.js

var id = reloadPage();

document.body.addEventListener("mouseover", function() {
  clearInterval(id);  
  id = reloadPage();
})

function reloadPage() {  
  var id = setInterval(function() {
    location.reload();
  },1000*60*10);
  
  return id;
}