Warning: Assumes Ubuntu font is installed. See https://greasyfork.org/en/scripts/29542-ubuntu-font/code for a fix.
// ==UserScript==
// @name Ubuntu font
// @namespace http://tampermonkey.net/
// @version 0.2
// @description Warning: Assumes Ubuntu font is installed. See https://greasyfork.org/en/scripts/29542-ubuntu-font/code for a fix.
// @author You
// @match */*
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
GM_addStyle("body { font-family: Ubuntu }");
})();