LiquidLinkGfycat.user.js

// ==UserScript==
// @name           LiquidLinkGfycat
// @namespace      https://gist.github.com/q00u
// @description    gfycat vid source links, an offshoot from LiquidLink https://gist.github.com/q00u/8f4182c4344ac6031f7d
// @author         Phoenix G
// @match          http://gfycat.com/*
// @match          https://gfycat.com/*
// @icon         https://www.google.com/s2/favicons?domain=gfycat.com
// @grant          none
// @version        0.1.3
// @require        https://code.jquery.com/jquery-1.10.2.js
// ==/UserScript==

var link = $("figcaption:first")?.text()?.match(/(https*:\/\/\S*)/);
if (link[0]!==null)
    {
        $("#video-details-container .left-block:first").append(' <a class=\"video-tag\" href="' + link[0] + '">(source)</a>'); //insert it
    }