diff --git a/internal/runner/options.go b/internal/runner/options.go
index 0c7fd0fb..eb7f1738 100644
--- a/internal/runner/options.go
+++ b/internal/runner/options.go
@@ -25,6 +25,13 @@ func validateOptions(options *types.Options) error {
 		return errorutil.New("no inputs specified for crawler")
 	}
 
+	// Disabling automatic form fill (-aff) for headless navigation due to incorrect implementation.
+	// Form filling should be handled via headless actions within the page context
+	if options.Headless && options.AutomaticFormFill {
+		options.AutomaticFormFill = false
+		gologger.Info().Msgf("Automatic form fill (-aff) has been disabled for headless navigation.")
+	}
+
 	if options.Headless && options.Passive {
 		return errorutil.New("headless mode (-headless) and passive mode (-passive) cannot be used together")
 	}