Mangadex Group Blocker

To block groups on Mangadex's latest releases page

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Mangadex Group Blocker
// @namespace   Violentmonkey Scripts
// @match       https://mangadex.org/titles/latest*
// @require     http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// @require     https://greatest.deepsurf.us/scripts/383527-wait-for-key-elements/code/Wait_for_key_elements.js?version=701631
// @grant       none
// @version     3.0
// @author      Onemanleft
// @description To block groups on Mangadex's latest releases page
// ==/UserScript==

// Start and end are the formats for the relevant element on the page.
const start = "#__layout > div > div.flex-grow.flex.flex-col.flex-shrink > div.flex-grow > div > div:nth-child(2) > div.mb-12 > div:nth-child(";
// Normal groups
const end = ") > div > div > div > div:nth-child(1) > a > div > div.flex.items-center.space-x-1.flex.space-x-2.items-center.md\\:col-span-2";
// Title if you want to debug at the end of the switch expression
const title = ") > div > a.chapter-feed__title";
// Wait for the chapters to be loaded.
waitForKeyElements(".flex-grow", function () {
try {
    // Count is how many chapters were loaded.
    const count = document.querySelector("#__layout > div > div.flex-grow.flex.flex-col.flex-shrink > div.flex-grow > div > div:nth-child(2) > div.mb-12").childElementCount;
    // Max "count" number of entries per page.
    for (let i = 1; i <= count; i++) {
        // This shows the group name.
        var x = document.querySelector(start + i + end).innerText;
        switch (x) {
            // The groups you want to block.
            case "Azuki Manga":
            case "Bilibili Comics":
            case "Comikey":
            case "MangaPlus":
            /* To block more groups add a line after 'case "Bilibili Comics":' like
            case "Test":
            Or simply delete the line if you don't want to block it.
            It IS a COLON (:) NOT a SEMICOLON (;)
            If you want to add pair group releases do
            case "Group 1\nGroup 2":
            */
            // Uncomment the line below if you want to see what got hidden by deleting the // and then going to F12 > Console
            // console.log("Hid " + x + " at count " + i + " titled " + document.querySelector(start + i + title).innerText);
            // This blocks the element if it matches the group name.
            document.querySelector(start + i + ")").style.display="none";
        }
    }
}
catch (e) {
    // If it sometimes doesn't work try refreshing. F12 > Console to view any possible errors.
    // <Cannot read property 'childElementCount' of null> sometimes appear at the start of a new latest page for some reason but stop after the next page.
    console.log(e);
}});