diff --git a/README.md b/README.md
index 5842995..5d6ccde 100644
--- a/README.md
+++ b/README.md
@@ -14,3 +14,5 @@ Note: Some [anti-viruses complain about this file](https://www.virustotal.com/gu
 ## Requirements
 
 Modern web-browser set as default (it is not Internet Explorer).
+
+It's more convenient to use Firefox because of YouTube's cookie issues.
diff --git a/www/api/index.php b/www/api/index.php
index b2cc0a6..07ceba4 100644
--- a/www/api/index.php
+++ b/www/api/index.php
@@ -5,6 +5,7 @@
 const STAGE_MAIN = 'main';
 const TOOL_EXE_FILENAME = 'yt-dlp_x86.exe';
 const TOOL_FOLDER_SETTING_NAME = 'yt-dlp_x86_folder';
+const TOOL_OPTIONS_SETTING_NAME = 'ytDlpOptions';
 
 function ret400 (): never {
 	header ( "HTTP/1.1 400 Bad Request", true, 400 );
@@ -39,10 +40,16 @@ function startJob ( string $jobId, string $jobCmd ): bool {
 	return getHTTPResponseCode ( $http_response_header ) === 200;
 }
 
-function getJobCmd ( string $link, array $settings ): string {
-	$toolFullPath = convertToLocale ( $settings[TOOL_FOLDER_SETTING_NAME] ) . "\\" . TOOL_EXE_FILENAME;
+function getBaseCmd(array $settings): string {
+	$toolFullPath = convertToLocale($settings[TOOL_FOLDER_SETTING_NAME]) . "\\" . TOOL_EXE_FILENAME;
 	$jobCmd = "$toolFullPath --encoding utf-8 --no-check-certificate --no-color";
-	if ( $settings['proxy'] !== '' ) $jobCmd .= ' --proxy ' . $settings['proxy'];
+	if ($settings['proxy'] !== '') $jobCmd .= ' --proxy ' . $settings['proxy'];
+	if ($settings[TOOL_OPTIONS_SETTING_NAME] !== '') $jobCmd .= ' ' . $settings[TOOL_OPTIONS_SETTING_NAME];
+	return $jobCmd;
+}
+
+function getJobCmd ( string $link, array $settings ): string {
+	$jobCmd = getBaseCmd($settings);
 	$jobCmd .= ' --get-title ' . $link;
 	return $jobCmd;
 }
@@ -159,9 +166,7 @@ function updateTask ( $db, array $data, array $task ): void {
 			$stage = STAGE_MAIN;
 			$showTitle = 1;
 			$settings = getSettings ( $db );
-			$toolFullPath = convertToLocale ( $settings[TOOL_FOLDER_SETTING_NAME] ) . "\\" . TOOL_EXE_FILENAME;
-			$jobCmd = "$toolFullPath --encoding utf-8 --no-check-certificate --no-color";
-			if ( $settings['proxy'] !== '' ) $jobCmd .= ' --proxy ' . $settings['proxy'];
+			$jobCmd = getBaseCmd($settings);
 			$targetFolder = convertToLocale ( $settings['targetFolder'] );
 			$jobCmd .= ' -v --newline';
 			$ffmpegHome = convertToLocale ( $settings['ffmpegHome'] );
@@ -265,6 +270,12 @@ function getSettings ( $db ): array {
 		$stmt->execute();
 		$stmt->close ();
 	}
+	if ( !isset ( $settings[TOOL_OPTIONS_SETTING_NAME] )) {
+		$settings[TOOL_OPTIONS_SETTING_NAME] = '';
+		$stmt = $db->prepare ( "INSERT INTO settings ( name, value ) values ( '" . TOOL_OPTIONS_SETTING_NAME . "', '' )" );
+		$stmt->execute();
+		$stmt->close ();
+	}
 	if ( !isset ( $settings['locale'] )) {
 		$settings['locale'] = 'en-US';
 		$stmt = $db->prepare ( "INSERT INTO settings ( name, value ) values ( 'locale', 'en-US' )" );
@@ -311,6 +322,12 @@ function saveSettings ( $db, array $settings ): void {
 	$stmt->execute();
 	$stmt->close ();
 
+	$ytDlpOptions = trim ( $settings[TOOL_OPTIONS_SETTING_NAME] );
+	$stmt = $db->prepare ( "UPDATE settings set value = :value where name = '" . TOOL_OPTIONS_SETTING_NAME . "'" );
+	$stmt->bindParam ( ':value', $ytDlpOptions );
+	$stmt->execute();
+	$stmt->close ();
+
 	$locale = $settings['locale'];
 	$stmt = $db->prepare ( "UPDATE settings set value = :value where name = 'locale'" );
 	$stmt->bindParam ( ':value', $locale );
diff --git a/www/index.html b/www/index.html
index e41a856..03b0692 100644
--- a/www/index.html
+++ b/www/index.html
@@ -39,6 +39,9 @@
 		<tr v-show="showSettings">
 			<td>{{$t('Proxy')}}</td><td><input type=text v-model="settings.proxy" size=90 placeholder="192.168.100.200:3128"></td>
 		</tr>
+		<tr v-show="showSettings">
+			<td>{{$t('ytDlpOptions')}}</td><td><input type=text v-model="settings.ytDlpOptions" size=90 placeholder="--cookies-from-browser firefox"></td>
+		</tr>
 		<tr>
 			<td>{{$t('targetFolder')}}</td><td><input type=text v-model="settings.targetFolder" size=90> <button @click="openTargetFolder" class="button_primary">{{$t('open')}}</button></td>
 		</tr>
diff --git a/www/main.js b/www/main.js
index 94fd26f..a6ddf94 100644
--- a/www/main.js
+++ b/www/main.js
@@ -25,6 +25,7 @@ new Vue ({
         videoResolution: -1,
         ffmpegHome: '',
         proxy: '',
+        ytDlpOptions: '',
         locale: 'en-US'
       }
     }
diff --git a/www/messages.js b/www/messages.js
index fba5860..6f1edbf 100644
--- a/www/messages.js
+++ b/www/messages.js
@@ -19,6 +19,7 @@ var messages = {
     Audio: "Audio",
     pathToBinFolder: "Path to 'bin' folder",
     Proxy: "Proxy",
+    ytDlpOptions: "yt-dlp options",
     link: "link",
     title: "title",
     downloaded: "downloaded",
@@ -68,6 +69,7 @@ var messages = {
     Audio: "Audio",
     pathToBinFolder: "Pfad zum 'bin'-Ordner",
     Proxy: "Stellvertreter",
+    ytDlpOptions: "yt-dlp Optionen",
     link: "link",
     title: "titel",
     downloaded: "heruntergeladen",
@@ -117,6 +119,7 @@ var messages = {
     Audio: "Аудио",
     pathToBinFolder: "Путь к папке 'bin'",
     Proxy: "Прокси",
+    ytDlpOptions: "yt-dlp опции",
     link: "ссылка",
     title: "название",
     downloaded: "скачено",