Sleazy Fork is available in English.
Takes you back to the thumbnails view of a comic.
// ==UserScript==
// @name MyHG Thumbnails
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Takes you back to the thumbnails view of a comic.
// @author isvinc3s
// @match https://myhentaigallery.com/gallery/show/*
// @grant none
// @require http://code.jquery.com/jquery-1.12.4.min.js
// ==/UserScript==
(function() {
'use strict';
var cElem = $(".breadcrumbs.clear ul li:nth-child(3)");
var cName = cElem.html();
var cNum = window.location.href.split('/')[5];
cElem.empty();
cElem.html('<a href="https://myhentaigallery.com/gallery/thumbnails/' + cNum + '">' + cName + "</a>");
console.log(cName);
})();