Code:
// ==UserScript==
// @name MMOwned Favicon Replacer
// @namespace Dr. Watson
// @version 1.0
// @description Replace MMowned's blank Favicon with a new (or custom) one
// @include http://www.mmowned.tld/*
// ==/UserScript==
(function(d, h) {
// Create favicon
var ss = d.createElement('link');
ss.rel = 'shortcut icon';
ss.type = 'image/x-icon';
// For Custom Favicon, visit http://www.greywyvern.com/code/php/binary2base64 and insert url to convert to Base64. Copy and Paste the results. You must keep it in the apostrophes '....'
// Supported filetypes: ICO, PNG, ani GIF, JPEG, APNG
ss.href = 'data:image/png;base64,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%3D%3D';
// Remove any existing favicons (just in case they add one to the site and you don't like it)
var links = h.getElementsByTagName('link');
for (var i=0; i<links.length; i++) {
if (links[i].href == ss.href) return;
if (links[i].rel == "shortcut icon" || links[i].rel=="icon")
h.removeChild(links[i]);
}
// Add favicon to the head
h.appendChild(ss);
// Force browser to register it
var shim = document.createElement('iframe');
shim.width = shim.height = 0;
document.body.appendChild(shim);
shim.src = "icon";
document.body.removeChild(shim);
})(document, document.getElementsByTagName('head')[0]);