diff --git a/import.php b/import.php
index 2cde227..4182cda 100755
--- a/import.php
+++ b/import.php
@@ -848,6 +848,11 @@ if ($action == 'addmissingprices' && $id > 0) {
         if ($errorCount > 0) {
             setEventMessages($addedCount.' hinzugefuegt, '.$errorCount.' Fehler', null, 'warnings');
         }
+
+        // Redirect to avoid "Form resubmit" warning on page reload
+        $redirectUrl = $_SERVER['PHP_SELF'].'?id='.$id;
+        header('Location: '.$redirectUrl);
+        exit;
     } else {
         setEventMessages('Keine Preise ausgewählt', null, 'warnings');
     }
@@ -1762,6 +1767,11 @@ if ($action == 'createallfromdatanorm' && $id > 0) {
             $import->status = ZugferdImport::STATUS_IMPORTED;
             $import->update($user);
         }
+
+        // Redirect to avoid "Form resubmit" warning on page reload
+        $redirectUrl = $_SERVER['PHP_SELF'].'?id='.$id;
+        header('Location: '.$redirectUrl);
+        exit;
     }
     $action = 'edit';
     $import->fetch($id);
@@ -2950,12 +2960,11 @@ if ($action == 'edit' && $import->id > 0) {
         print '<i class="fas fa-database paddingright"></i>'.$langs->trans('DatanormPreview');
         print ' <span class="badge badge-info">'.count($datanormPreviewMatches).' '.$langs->trans('Matches').'</span>';
 
-        // Filter: Kabel ausblenden (in eigenem Form für sofortiges Submit)
+        // Filter: Kabel ausblenden (als GET-Parameter für Reload-Sicherheit)
         $hideCables = GETPOST('hide_cables', 'int');
         $checked = $hideCables ? ' checked' : '';
         print '<div style="float: right; margin-top: -5px;">';
-        print '<form method="POST" action="'.$_SERVER['PHP_SELF'].'" style="display: inline-block; margin: 0; padding: 5px 10px; background-color: #f8f8f8; border: 1px solid #ddd; border-radius: 4px;">';
-        print '<input type="hidden" name="token" value="'.newToken().'">';
+        print '<form method="GET" action="'.$_SERVER['PHP_SELF'].'" style="display: inline-block; margin: 0; padding: 5px 10px; background-color: #f8f8f8; border: 1px solid #ddd; border-radius: 4px;">';
         print '<input type="hidden" name="action" value="previewdatanorm">';
         print '<input type="hidden" name="id" value="'.$import->id.'">';
         print '<label style="font-weight: normal; cursor: pointer; margin: 0;">';