Fix Firefox Android cookie dialog back gestures

functions.php

@@ -59,6 +59,25 @@ function c1024_2026_disable_w3tc_javascript_lazyload( $can_process ) {
 }
 add_filter( 'w3tc_lazyload_can_process', 'c1024_2026_disable_w3tc_javascript_lazyload' );
 
+/**
+ * Avoid a Firefox Android close watcher for the cookie plugin's CSS-hidden dialog.
+ *
+ * GDPR Cookie Compliance 5.2.2 keeps its native dialog permanently open and manages
+ * visibility/focus itself. Use ARIA semantics without the native close watcher
+ * that consumes Android back gestures (Mozilla bug 2078216).
+ */
+function c1024_2026_gdpr_modal_dialog( $html ) {
+	$modal = preg_replace(
+		'/<dialog id="moove_gdpr_cookie_modal" class="gdpr_lightbox-hide" open\b([^>]*)>(.*)<\/dialog>/s',
+		'<div id="moove_gdpr_cookie_modal" class="gdpr_lightbox-hide" role="dialog"$1>$2</div>',
+		$html,
+		1
+	);
+
+	return null !== $modal ? $modal : $html;
+}
+add_filter( 'gdpr_modal_base_module', 'c1024_2026_gdpr_modal_dialog' );
+
 function c1024_2026_block_editor_assets() {
 	// Load the complete canvas stylesheet inside Gutenberg's editor iframe.
 	wp_enqueue_style( 'c1024-2026-editor-style', get_theme_file_uri( '/editor-style.css' ), array(), '1.0.0' );

style.css

@@ -221,6 +221,18 @@ button {
 .site-header.is-hidden {
   transform: translateY(-105%);
 }
+/* Match the cookie plugin's native-dialog layout for our ARIA-dialog wrapper. */
+.gdpr_lightbox div#moove_gdpr_cookie_modal[role="dialog"] {
+  display: flex;
+  position: relative;
+  padding: 0;
+  background: transparent;
+  border: none;
+  width: 100%;
+  height: 100%;
+  justify-content: center;
+  align-items: center;
+}
 .header-inner {
   display: flex;
   align-items: center;