Greasy Fork is available in English.
This simple script adds search links for mangapages on Mangaupdates
// ==UserScript==// @name Mangaupdates Manga search// @namespace Mangaupdates Manga search// @match *://www.mangaupdates.com/series.html?id=*// @match *://www.mangaupdates.com/series/*// @grant none// @version 1.10// @author henrik9999// @run-at document-idle// @description This simple script adds search links for mangapages on Mangaupdates// ==/UserScript==var title = document.getElementsByClassName('releasestitle')[0].innerHTML.replace(/\(.+\)\s*$/,"").trim();var titleEncoded = encodeURI(title);var div = document.querySelector("#main_content > div:nth-child(2) > div.row.no-gutters > div:nth-child(1)");var node = document.createElement('style');node.innerHTML = 'div#searchscript img{padding:0px 5px 0px 5px;}'document.body.appendChild(node);div.innerHTML += `<div id="searchscript"><h3>Search</h3><a href="https://manga4life.com/search/?name=`+titleEncoded+`"><img src="https://www.google.com/s2/favicons?domain=https://manga4life.com/">Manga4Life</a><a href="https://mangadex.org/titles?q=`+titleEncoded+`"><img src="https://www.google.com/s2/favicons?domain=https://mangadex.org">Mangadex</a><a href="http://www.mangahere.cc/search?title=`+titleEncoded+`"><img src="https://www.google.com/s2/favicons?domain=http://www.mangahere.cc/">MangaHere</a><a href="https://manganelo.net/search/story/`+title.replace(/\s/gm,"_")+`"><img src="https://www.google.com/s2/favicons?domain=https://manganelo.net/">MangaNelo</a><a href="https://mangapark.net/search?word=`+titleEncoded+`"><img src="https://www.google.com/s2/favicons?domain=https://mangapark.net">MangaPark</a></div>`;