// ==UserScript==
// @name           Unframe single frame
// @namespace      http://www.bofrede.com/
// @include        *
// ==/UserScript==


(function () {
    var allFrames = document.getElementsByTagName('frame');
    if (allFrames.length === 1) {
        this.location = allFrames[0].getAttribute('src');
    }
})();