Only tested in chrome, shove this in a bookmarklet:
javascript:void(function(){var r=(function(){var i,a,s;a=document.getElementsByTagName('link');for(i=0;i=0&&s.href) {var h=s.href.replace(/(&|%5C?)forceReload=\d+/,'');s.href=h+(h.indexOf('?')>=0?'&':'?')+'forceReload='+(new Date().valueOf())}}}); window.addEventListener('focus',r,false)})();