diff --git a/phpBB/assets/javascript/webpush.js b/phpBB/assets/javascript/webpush.js
index c326fe1cff..94e542d2ae 100644
--- a/phpBB/assets/javascript/webpush.js
+++ b/phpBB/assets/javascript/webpush.js
@@ -150,6 +150,7 @@ function PhpbbWebpush() {
 		// Prevent the user from clicking the subscribe button multiple times.
 		const result = await Notification.requestPermission();
 		if (result === 'denied') {
+			phpbb.alert(subscribeButton.getAttribute('data-l-err'), subscribeButton.getAttribute('data-l-msg'));
 			return;
 		}
 
diff --git a/phpBB/language/en/common.php b/phpBB/language/en/common.php
index 5933cc8f5c..43269679bf 100644
--- a/phpBB/language/en/common.php
+++ b/phpBB/language/en/common.php
@@ -515,6 +515,7 @@ $lang = array_merge($lang, array(
 	'NOTIFY_WEB_PUSH_ENABLE'	=> 'Enable Web Push notifications',
 	'NOTIFY_WEB_PUSH_SUBSCRIBE'	=> 'Subscribe',
 	'NOTIFY_WEB_PUSH_SUBSCRIBED'=> 'Subscribed',
+	'NOTIFY_WEB_PUSH_DENIED'	=> 'You have denied notifications from this site. To subscribe, please allow notifications in your browser settings.',
 	'NO_ACCESS_ATTACHMENT'		=> 'You are not allowed to access this file.',
 	'NO_ACTION'					=> 'No action specified.',
 	'NO_ADMINISTRATORS'			=> 'There are no administrators.',
diff --git a/phpBB/styles/prosilver/template/notification_dropdown.html b/phpBB/styles/prosilver/template/notification_dropdown.html
index ff52543d0a..abd5c85bfd 100644
--- a/phpBB/styles/prosilver/template/notification_dropdown.html
+++ b/phpBB/styles/prosilver/template/notification_dropdown.html
@@ -47,7 +47,7 @@
 		{% if NOTIFICATIONS_WEBPUSH_ENABLE and notification_types is not defined %}
 			<div class="notification-dropdown-footer">
 				<span class="ellipsis-text">{{ lang('NOTIFY_WEB_PUSH_ENABLE') ~ lang('COLON') }}</span>
-				<button id="subscribe_webpush" name="subscribe_webpush" class="notification-subscribe_toggle">{{ Icon('font', 'toggle-off', lang('NOTIFY_WEB_PUSH_SUBSCRIBE'), false, '', {'style' : 'color:#9e9e9e;'}) }}</button>
+				<button id="subscribe_webpush" name="subscribe_webpush" class="notification-subscribe_toggle" data-l-err="{{ lang('INFORMATION') }}" data-l-msg="{{ lang('NOTIFY_WEB_PUSH_DENIED') }}">{{ Icon('font', 'toggle-off', lang('NOTIFY_WEB_PUSH_SUBSCRIBE'), false, '', {'style' : 'color:#9e9e9e;'}) }}</button>
 				<button id="unsubscribe_webpush" name="unsubscribe_webpush" class="notification-subscribe_toggle hidden">{{ Icon('font', 'toggle-on', lang('NOTIFY_WEB_PUSH_SUBSCRIBED'), false, '', {'style' : 'color:#0059b3;'}) }}</button>
 			</div>
 		{% endif %}
diff --git a/phpBB/styles/prosilver/template/ucp_notifications_options.html b/phpBB/styles/prosilver/template/ucp_notifications_options.html
index b3be983f16..27981581ff 100644
--- a/phpBB/styles/prosilver/template/ucp_notifications_options.html
+++ b/phpBB/styles/prosilver/template/ucp_notifications_options.html
@@ -10,7 +10,7 @@
 					<dl>
 						<dt><label for="subscribe_webpush">{{ lang('NOTIFY_WEBPUSH_ENABLE') ~ lang('COLON') }}</label><br><span>{{ lang('NOTIFY_WEBPUSH_ENABLE_EXPLAIN') }}</span></dt>
 						<dd>
-							<input id="subscribe_webpush" type="submit" name="subscribe_webpush" value="{{ lang('NOTIFY_WEBPUSH_SUBSCRIBE') }}" class="button1 button button-form">
+							<input id="subscribe_webpush" type="submit" name="subscribe_webpush" value="{{ lang('NOTIFY_WEBPUSH_SUBSCRIBE') }}" class="button1 button button-form" data-l-err="{{ lang('INFORMATION') }}" data-l-msg="{{ lang('NOTIFY_WEB_PUSH_DENIED') }}">
 							<input id="unsubscribe_webpush" type="submit" name="unsubscribe_webpush" value="{{ lang('NOTIFY_WEBPUSH_UNSUBSCRIBE') }}" class="button1 button button-form hidden">
 						</dd>
 					</dl>