Makes YouTube automatically redirect you to your Subscription page if signed in.
// ==UserScript==
// @name YouTube Default to My Subscriptions
// @namespace https://greasyfork.org/users/5097-aemony
// @description Makes YouTube automatically redirect you to your Subscription page if signed in.
// @include *://*.youtube.com/
// @exclude /^https?:\/\/\w+\.youtube\.com\/\w+$/
// @run-at document-start
// @version 1.0
// ==/UserScript==
var regex = new RegExp("/feed/subscriptions[/u]*");
// Check if cookie SID can be found (seems to be used when signed in)
if (document.cookie.indexOf("SID") !== -1 && !document.referrer.match(regex)) {
document.location = document.URL + "feed/subscriptions";
}