Greasy Fork is available in English.

Redirector

enter something useful

// ==UserScript==
// @name       Redirector
// @namespace  http://use.i.E.your.homepage/
// @version    0.2
// @description  enter something useful
// @match      http://*/*
// @copyright  2012+, You
// @run-at document-start
// @include http://www.google.com
// @include http://www.google.com/*
// @include http://*.google.com/*
// ==/UserScript==

window.location = "http://www.yahoo.com"