View google results of last year on page load. Keep your changes till reload.
// ==UserScript==
// @name Google_last_year
// @namespace no
// @description View google results of last year on page load. Keep your changes till reload.
// @include http://google.*/search*
// @include https://google.*/search*
// @include http://www.google.*/search*
// @include https://www.google.*/search*
// @include http://www.google.*/webhp*
// @include https://www.google.*/webhp*
// @version 1
// @grant none
// ==/UserScript==
if(!location.search.match(/&tbs=/)) {
location.href = location.href + '&tbs=qdr:y';
}