diff --git a/config.py b/config.py
index 40cb088..16172c1 100644
--- a/config.py
+++ b/config.py
@@ -51,11 +51,7 @@ DEFAULT_CONFIG = {
         "ignore_config": False,
         "remux_mkv": False,
         "embed_metadata": False,
-        "use_ffmpeg_location": False,
-        "cookies_from_browser": {
-            "enabled": False,
-            "browser": "chrome"
-        }
+        "use_ffmpeg_location": False
     },
     "hide_default_presets": False,
     "enable_adn_tab": False,
diff --git a/dialogs.py b/dialogs.py
index faeaee4..de06f77 100644
--- a/dialogs.py
+++ b/dialogs.py
@@ -4,10 +4,10 @@ Dialog-Klassen für den Video Download Helper
 """
 import os
 import subprocess
-from PyQt5.QtWidgets import (QDialog, QVBoxLayout, QFormLayout, QLineEdit, QTextEdit, 
-                           QPushButton, QComboBox, QCheckBox, QTabWidget, QWidget, 
-                           QHBoxLayout, QGroupBox, QLabel, QDialogButtonBox, 
-                           QFileDialog, QMessageBox)
+from PyQt5.QtWidgets import (QDialog, QVBoxLayout, QFormLayout, QLineEdit, QTextEdit,
+                           QPushButton, QComboBox, QCheckBox, QTabWidget, QWidget,
+                           QHBoxLayout, QGroupBox, QLabel, QDialogButtonBox,
+                           QFileDialog, QMessageBox, QRadioButton, QButtonGroup)
 from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QIcon
 from config import get_base_path, SERIES_TEMPLATE
@@ -148,27 +148,89 @@ class PresetDialog(QDialog):
         
         # Tab 4: Authentifizierung
         auth_tab = QWidget()
-        auth_layout = QFormLayout()
-        
-        # Login-Felder
+        auth_layout = QVBoxLayout()
+
+        # Radio-Button-Gruppe für Authentifizierungsmethode
+        auth_method_label = QLabel("<b>Authentifizierungsmethode:</b>")
+        auth_layout.addWidget(auth_method_label)
+
+        self.auth_button_group = QButtonGroup()
+        self.auth_none_radio = QRadioButton("Keine Authentifizierung")
+        self.auth_userpass_radio = QRadioButton("Username/Passwort")
+        self.auth_cookies_radio = QRadioButton("Cookies vom Browser")
+
+        self.auth_button_group.addButton(self.auth_none_radio, 0)
+        self.auth_button_group.addButton(self.auth_userpass_radio, 1)
+        self.auth_button_group.addButton(self.auth_cookies_radio, 2)
+
+        auth_layout.addWidget(self.auth_none_radio)
+        auth_layout.addWidget(self.auth_userpass_radio)
+        auth_layout.addWidget(self.auth_cookies_radio)
+
+        # Username/Passwort-Gruppe
+        self.userpass_group = QGroupBox("Username/Passwort")
+        userpass_layout = QFormLayout()
+
         self.username_edit = QLineEdit(self.preset_data.get("username", ""))
-        self.username_edit.setPlaceholderText("Optional: Benutzername für Login (-u)")
-        auth_layout.addRow("Benutzername:", self.username_edit)
-        
+        self.username_edit.setPlaceholderText("Benutzername für Login (-u)")
+        userpass_layout.addRow("Benutzername:", self.username_edit)
+
         pw_hbox = QHBoxLayout()
         self.password_edit = QLineEdit(self.preset_data.get("password", ""))
         self.password_edit.setEchoMode(QLineEdit.Password)
-        self.password_edit.setPlaceholderText("Optional: Passwort für Login (-p)")
+        self.password_edit.setPlaceholderText("Passwort für Login (-p)")
         self.show_pw_cb = QCheckBox("Passwort anzeigen")
         self.show_pw_cb.toggled.connect(self.toggle_password_visible)
         pw_hbox.addWidget(self.password_edit)
         pw_hbox.addWidget(self.show_pw_cb)
-        auth_layout.addRow("Passwort:", pw_hbox)
-        
+        userpass_layout.addRow("Passwort:", pw_hbox)
+
         pw_hint = QLabel("Hinweis: Passwörter werden im Klartext lokal gespeichert!")
         pw_hint.setStyleSheet("color: red;")
-        auth_layout.addRow(pw_hint)
-        
+        userpass_layout.addRow(pw_hint)
+
+        self.userpass_group.setLayout(userpass_layout)
+        auth_layout.addWidget(self.userpass_group)
+
+        # Cookies-Gruppe
+        self.cookies_group = QGroupBox("Cookies vom Browser")
+        cookies_layout = QFormLayout()
+
+        self.browser_combo = QComboBox()
+        self.browser_combo.addItem("Chrome", "chrome")
+        self.browser_combo.addItem("Firefox", "firefox")
+        cookies_layout.addRow("Browser:", self.browser_combo)
+
+        cookies_hint = QLabel("Nutzt Cookies aus dem angegebenen Browser (--cookies-from-browser)")
+        cookies_layout.addRow(cookies_hint)
+
+        self.cookies_group.setLayout(cookies_layout)
+        auth_layout.addWidget(self.cookies_group)
+
+        # Verbinde Radio-Buttons mit Update-Methode
+        self.auth_button_group.buttonToggled.connect(self.update_auth_fields_state)
+
+        # Bestimme, welche Methode initial ausgewählt werden soll
+        cookies_enabled = self.preset_data.get("cookies_from_browser", {}).get("enabled", False)
+        has_username = bool(self.preset_data.get("username", ""))
+        has_password = bool(self.preset_data.get("password", ""))
+
+        if cookies_enabled:
+            self.auth_cookies_radio.setChecked(True)
+            # Browser auswählen
+            browser = self.preset_data.get("cookies_from_browser", {}).get("browser", "chrome")
+            idx = self.browser_combo.findData(browser)
+            if idx >= 0:
+                self.browser_combo.setCurrentIndex(idx)
+        elif has_username or has_password:
+            self.auth_userpass_radio.setChecked(True)
+        else:
+            self.auth_none_radio.setChecked(True)
+
+        # Initial state setzen
+        self.update_auth_fields_state()
+
+        auth_layout.addStretch()
         auth_tab.setLayout(auth_layout)
         tabs.addTab(auth_tab, "Authentifizierung")
         
@@ -283,6 +345,14 @@ class PresetDialog(QDialog):
     def toggle_password_visible(self, checked):
         self.password_edit.setEchoMode(QLineEdit.Normal if checked else QLineEdit.Password)
 
+    def update_auth_fields_state(self):
+        """Aktiviert/Deaktiviert die Authentifizierungs-Gruppen basierend auf Radio-Button-Auswahl."""
+        is_userpass = self.auth_userpass_radio.isChecked()
+        is_cookies = self.auth_cookies_radio.isChecked()
+
+        self.userpass_group.setEnabled(is_userpass)
+        self.cookies_group.setEnabled(is_cookies)
+
     def toggle_format_selection(self, checked):
         # Diese Methode setzt Flags, wenn die Format-Auswahl aktiviert wird
         pass
@@ -292,6 +362,10 @@ class PresetDialog(QDialog):
         self.dual_audio_group.setEnabled(checked)
 
     def get_preset_data(self):
+        # Bestimme Authentifizierungsmethode
+        is_userpass = self.auth_userpass_radio.isChecked()
+        is_cookies = self.auth_cookies_radio.isChecked()
+
         return {
             "name": self.name_edit.text(),
             "description": self.description_edit.text(),
@@ -303,8 +377,12 @@ class PresetDialog(QDialog):
             "episode": self.episode_edit.text(),
             "custom_path": self.custom_path_edit.text(),
             "is_audio": self.is_audio_cb.isChecked(),
-            "username": self.username_edit.text(),
-            "password": self.password_edit.text(),
+            "username": self.username_edit.text() if is_userpass else "",
+            "password": self.password_edit.text() if is_userpass else "",
+            "cookies_from_browser": {
+                "enabled": is_cookies,
+                "browser": self.browser_combo.currentData() if is_cookies else "chrome"
+            },
             "referer": self.referer_edit.text(),
             "hls_ffmpeg": self.hls_ffmpeg_cb.isChecked(),
             "sublang": self.sublang_edit.text(),
@@ -441,30 +519,6 @@ class OptionenDialog(QDialog):
         flags_layout.addWidget(self.cb_use_ffmpeg_location)
         flags_layout.addWidget(QLabel("Nutzt den konfigurierten FFmpeg-Pfad für yt-dlp."))
 
-        # Cookies from Browser
-        self.cb_cookies_from_browser = QCheckBox("--cookies-from-browser")
-        cookies_config = self.selected_flags.get("cookies_from_browser", {"enabled": False, "browser": "chrome"})
-        self.cb_cookies_from_browser.setChecked(cookies_config.get("enabled", False))
-        self.cb_cookies_from_browser.toggled.connect(self.toggle_browser_combo)
-        flags_layout.addWidget(self.cb_cookies_from_browser)
-
-        # Browser-Auswahl
-        browser_layout = QHBoxLayout()
-        browser_layout.addWidget(QLabel("Browser:"))
-        self.browser_combo = QComboBox()
-        self.browser_combo.addItem("Chrome", "chrome")
-        self.browser_combo.addItem("Firefox", "firefox")
-        # Vorbelegen
-        browser = cookies_config.get("browser", "chrome")
-        idx = self.browser_combo.findData(browser)
-        if idx >= 0:
-            self.browser_combo.setCurrentIndex(idx)
-        self.browser_combo.setEnabled(self.cb_cookies_from_browser.isChecked())
-        browser_layout.addWidget(self.browser_combo)
-        browser_layout.addStretch()
-        flags_layout.addLayout(browser_layout)
-        flags_layout.addWidget(QLabel("Nutzt Cookies aus dem angegebenen Browser."))
-
         tab_flags.setLayout(flags_layout)
         tabs.addTab(tab_flags, "yt-dlp-Flags")
 
@@ -472,7 +526,7 @@ class OptionenDialog(QDialog):
         tab_info = QWidget()
         info_layout = QVBoxLayout()
         info_text = (
-            "<b>Version:</b> 1.4<br>"
+            "<b>Version:</b> 2.0<br>"
             "<b>&copy; 2025 Akamaru</b><br>"
             "<b>Sourcecode:</b> <a href='https://git.ponywave.de/Akamaru/video-download-helper'>https://git.ponywave.de/Akamaru/video-download-helper</a><br>"
             "<b>Erstellt mit Hilfe von Claude, GPT &amp; Gemini</b>"
@@ -540,10 +594,6 @@ class OptionenDialog(QDialog):
             file_path = dialog.selectedFiles()[0]
             self.ffmpeg_path_input.setText(file_path)
 
-    def toggle_browser_combo(self, checked):
-        """Aktiviert/Deaktiviert die Browser-ComboBox basierend auf der Checkbox."""
-        self.browser_combo.setEnabled(checked)
-
     def get_values(self):
         return (
             self.output_dir_input.text(),
@@ -552,11 +602,7 @@ class OptionenDialog(QDialog):
                 "ignore_config": self.cb_ignore_config.isChecked(),
                 "remux_mkv": self.cb_remux_mkv.isChecked(),
                 "embed_metadata": self.cb_embed_metadata.isChecked(),
-                "use_ffmpeg_location": self.cb_use_ffmpeg_location.isChecked(),
-                "cookies_from_browser": {
-                    "enabled": self.cb_cookies_from_browser.isChecked(),
-                    "browser": self.browser_combo.currentData()
-                }
+                "use_ffmpeg_location": self.cb_use_ffmpeg_location.isChecked()
             },
             self.hide_defaults_cb.isChecked(),
             self.mkvmerge_path_input.text(),
diff --git a/main.py b/main.py
index e63d32b..384f7aa 100644
--- a/main.py
+++ b/main.py
@@ -521,8 +521,8 @@ class MainWindow(QMainWindow):
         # FFmpeg-Pfad
         if flags.get("use_ffmpeg_location") and self.config.get("ffmpeg_path"):
             cmd.extend(["--ffmpeg-location", self.config.get("ffmpeg_path")])
-        # Cookies from Browser
-        cookies_config = flags.get("cookies_from_browser", {})
+        # Cookies from Browser (aus Preset)
+        cookies_config = preset.get("cookies_from_browser", {})
         if isinstance(cookies_config, dict) and cookies_config.get("enabled", False):
             browser = cookies_config.get("browser", "chrome")
             cmd.extend(["--cookies-from-browser", browser])
@@ -755,8 +755,8 @@ class MainWindow(QMainWindow):
         # FFmpeg-Pfad
         if flags.get("use_ffmpeg_location") and self.config.get("ffmpeg_path"):
             extra_args.extend(["--ffmpeg-location", self.config.get("ffmpeg_path")])
-        # Cookies from Browser
-        cookies_config = flags.get("cookies_from_browser", {})
+        # Cookies from Browser (aus Preset)
+        cookies_config = preset.get("cookies_from_browser", {})
         if isinstance(cookies_config, dict) and cookies_config.get("enabled", False):
             browser = cookies_config.get("browser", "chrome")
             extra_args.extend(["--cookies-from-browser", browser])
@@ -1011,8 +1011,8 @@ class MainWindow(QMainWindow):
             extra_args.extend(["--downloader", "ffmpeg", "--hls-use-mpegts"])
         if flags.get("use_ffmpeg_location") and self.config.get("ffmpeg_path"):
             extra_args.extend(["--ffmpeg-location", self.config.get("ffmpeg_path")])
-        # Cookies from Browser
-        cookies_config = flags.get("cookies_from_browser", {})
+        # Cookies from Browser (aus Preset)
+        cookies_config = preset.get("cookies_from_browser", {})
         if isinstance(cookies_config, dict) and cookies_config.get("enabled", False):
             browser = cookies_config.get("browser", "chrome")
             extra_args.extend(["--cookies-from-browser", browser])