diff --git a/serienfans-releasegroup-filter.user.js b/serienfans-releasegroup-filter.user.js
index db4b337..82d8bc3 100644
--- a/serienfans-releasegroup-filter.user.js
+++ b/serienfans-releasegroup-filter.user.js
@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         Serienfans/Filmfans Releasegruppen Filter
 // @namespace    https://git.ponywave.de/Akamaru/Userscripts
-// @version      1.1
+// @version      1.2
 // @description  Blende Uploads bestimmter Releasegruppen aus
 // @author       Akamaru
 // @match        https://serienfans.org/*
@@ -19,7 +19,7 @@
 (function() {
     'use strict';
 
-    // CSS für Block-Button
+    // CSS für Block-Button und Modal
     GM_addStyle(`
         .block-group-btn {
             display: inline;
@@ -34,6 +34,153 @@
             min-width: 0;
             vertical-align: middle;
         }
+
+        #blacklist-modal {
+            display: none;
+            position: fixed;
+            z-index: 10000;
+            left: 0;
+            top: 0;
+            width: 100%;
+            height: 100%;
+            background-color: rgba(0,0,0,0.6);
+            animation: fadeIn 0.2s;
+        }
+
+        @keyframes fadeIn {
+            from { opacity: 0; }
+            to { opacity: 1; }
+        }
+
+        #blacklist-modal-content {
+            background-color: #1a1a1a;
+            margin: 5% auto;
+            padding: 30px;
+            border: 1px solid #333;
+            border-radius: 8px;
+            width: 90%;
+            max-width: 600px;
+            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
+            color: #fff;
+        }
+
+        #blacklist-modal h2 {
+            margin-top: 0;
+            color: #fff;
+            font-size: 24px;
+            margin-bottom: 20px;
+        }
+
+        #blacklist-items {
+            max-height: 400px;
+            overflow-y: auto;
+            margin: 20px 0;
+            background: #2a2a2a;
+            border-radius: 4px;
+            padding: 10px;
+        }
+
+        .blacklist-item {
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+            padding: 10px;
+            margin: 5px 0;
+            background: #333;
+            border-radius: 4px;
+            transition: background 0.2s;
+        }
+
+        .blacklist-item:hover {
+            background: #3a3a3a;
+        }
+
+        .blacklist-item-name {
+            flex-grow: 1;
+            font-size: 16px;
+        }
+
+        .blacklist-item-remove {
+            background: #d32f2f;
+            color: white;
+            border: none;
+            padding: 5px 12px;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 14px;
+            transition: background 0.2s;
+        }
+
+        .blacklist-item-remove:hover {
+            background: #b71c1c;
+        }
+
+        #blacklist-add-container {
+            display: flex;
+            gap: 10px;
+            margin: 20px 0;
+        }
+
+        #blacklist-add-input {
+            flex-grow: 1;
+            padding: 10px;
+            border: 1px solid #444;
+            border-radius: 4px;
+            background: #2a2a2a;
+            color: #fff;
+            font-size: 14px;
+        }
+
+        #blacklist-add-input:focus {
+            outline: none;
+            border-color: #666;
+        }
+
+        #blacklist-add-btn, #blacklist-close-btn {
+            padding: 10px 20px;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 14px;
+            font-weight: 500;
+            transition: background 0.2s;
+        }
+
+        #blacklist-add-btn {
+            background: #4caf50;
+            color: white;
+        }
+
+        #blacklist-add-btn:hover {
+            background: #45a049;
+        }
+
+        #blacklist-close-btn {
+            background: #666;
+            color: white;
+            width: 100%;
+            margin-top: 10px;
+        }
+
+        #blacklist-close-btn:hover {
+            background: #777;
+        }
+
+        .blacklist-empty {
+            text-align: center;
+            padding: 30px;
+            color: #888;
+            font-style: italic;
+        }
+
+        #blacklist-menu-btn {
+            cursor: pointer;
+            transition: opacity 0.2s;
+        }
+
+        #blacklist-menu-btn:hover {
+            opacity: 0.8;
+        }
     `);
 
     // Standard-Blacklist (kann über das Menü bearbeitet werden)
@@ -126,23 +273,140 @@
         });
     }
 
-    // Funktion zum Bearbeiten der Blacklist
-    function editBlacklist() {
-        const currentList = blacklist.join(', ');
-        const newList = prompt('Releasegruppen zum Ausblenden (kommagetrennt):\n\nBeispiel: SURCODE, WATCHABLE, ENDSTATiON', currentList);
+    // Funktion zum Erstellen des Modal-Fensters
+    function createBlacklistModal() {
+        const modal = document.createElement('div');
+        modal.id = 'blacklist-modal';
+        modal.innerHTML = `
+            <div id="blacklist-modal-content">
+                <h2>🚫 Releasegruppen-Filter</h2>
+                <div id="blacklist-add-container">
+                    <input type="text" id="blacklist-add-input" placeholder="Releasegruppe hinzufügen (z.B. WvF, 4SF, WAYNE)">
+                    <button id="blacklist-add-btn">Hinzufügen</button>
+                </div>
+                <div id="blacklist-items"></div>
+                <button id="blacklist-close-btn">Schließen</button>
+            </div>
+        `;
+        document.body.appendChild(modal);
 
-        if (newList !== null) {
-            blacklist = newList.split(',').map(item => item.trim()).filter(item => item !== '');
-            GM_setValue('releasegroup_blacklist', blacklist);
-            alert('Blacklist gespeichert! Die Seite wird neu geladen.');
-            location.reload();
+        // Event Listeners
+        modal.addEventListener('click', (e) => {
+            if (e.target === modal) {
+                closeModal();
+            }
+        });
+
+        document.getElementById('blacklist-close-btn').addEventListener('click', closeModal);
+        document.getElementById('blacklist-add-btn').addEventListener('click', addToBlacklist);
+        document.getElementById('blacklist-add-input').addEventListener('keypress', (e) => {
+            if (e.key === 'Enter') {
+                addToBlacklist();
+            }
+        });
+
+        updateBlacklistDisplay();
+    }
+
+    // Funktion zum Aktualisieren der Blacklist-Anzeige
+    function updateBlacklistDisplay() {
+        const container = document.getElementById('blacklist-items');
+        if (!container) return;
+
+        if (blacklist.length === 0) {
+            container.innerHTML = '<div class="blacklist-empty">Keine Releasegruppen geblockt</div>';
+            return;
+        }
+
+        container.innerHTML = blacklist.map(group => `
+            <div class="blacklist-item">
+                <span class="blacklist-item-name">${group}</span>
+                <button class="blacklist-item-remove" data-group="${group}">Entfernen</button>
+            </div>
+        `).join('');
+
+        // Event Listeners für Remove-Buttons
+        container.querySelectorAll('.blacklist-item-remove').forEach(btn => {
+            btn.addEventListener('click', (e) => {
+                const group = e.target.getAttribute('data-group');
+                removeFromBlacklist(group);
+            });
+        });
+    }
+
+    // Funktion zum Hinzufügen einer Releasegruppe
+    function addToBlacklist() {
+        const input = document.getElementById('blacklist-add-input');
+        const group = input.value.trim();
+
+        if (group === '') return;
+
+        if (blacklist.some(blocked => blocked.toLowerCase() === group.toLowerCase())) {
+            alert(`"${group}" ist bereits in der Blacklist!`);
+            return;
+        }
+
+        blacklist.push(group);
+        GM_setValue('releasegroup_blacklist', blacklist);
+        input.value = '';
+        updateBlacklistDisplay();
+        filterReleasesAlternative();
+    }
+
+    // Funktion zum Entfernen einer Releasegruppe
+    function removeFromBlacklist(group) {
+        blacklist = blacklist.filter(item => item !== group);
+        GM_setValue('releasegroup_blacklist', blacklist);
+        updateBlacklistDisplay();
+        location.reload();
+    }
+
+    // Funktion zum Öffnen des Modals
+    function openModal() {
+        const modal = document.getElementById('blacklist-modal');
+        if (modal) {
+            modal.style.display = 'block';
+            updateBlacklistDisplay();
+            document.getElementById('blacklist-add-input').focus();
         }
     }
 
-    // Registriere Menübefehl
-    GM_registerMenuCommand('Releasegruppen-Filter bearbeiten', editBlacklist);
+    // Funktion zum Schließen des Modals
+    function closeModal() {
+        const modal = document.getElementById('blacklist-modal');
+        if (modal) {
+            modal.style.display = 'none';
+        }
+    }
 
-    // Filtere beim Laden der Seite
+    // Funktion zum Hinzufügen des Buttons im Header
+    function addHeaderButton() {
+        const menu = document.getElementById('menu');
+        if (!menu) return;
+
+        const menuBtn = document.createElement('a');
+        menuBtn.id = 'blacklist-menu-btn';
+        menuBtn.textContent = '🚫 Filter';
+        menuBtn.addEventListener('click', (e) => {
+            e.preventDefault();
+            openModal();
+        });
+
+        // Füge Button vor dem Settings-Link ein
+        const settingsLink = menu.querySelector('.settings');
+        if (settingsLink) {
+            menu.insertBefore(menuBtn, settingsLink);
+        } else {
+            menu.appendChild(menuBtn);
+        }
+    }
+
+    // Registriere Menübefehl (als Fallback)
+    GM_registerMenuCommand('Releasegruppen-Filter bearbeiten', openModal);
+
+    // Initialisierung
+    addHeaderButton();
+    createBlacklistModal();
     filterReleasesAlternative();
 
     // Beobachte Änderungen (falls Inhalte dynamisch nachgeladen werden)