diff -urN firefox-157.0-orig/widget/gtk/nsFilePicker.cpp firefox-157.0/widget/gtk/nsFilePicker.cpp
--- firefox-157.0-orig/widget/gtk/nsFilePicker.cpp	2026-09-24 19:45:56 +0900
+++ firefox-157.0/widget/gtk/nsFilePicker.cpp	2026-10-05 04:54:02 +0900
@@ -877,14 +877,6 @@
 }
 
 void nsFilePicker::DoneNonPortal(GtkWidget* file_chooser, gint response) {
-  // Ignore a confirmation that arrives before the input-protection time range
-  // has passed, leaving the dialog open. (GTK emits GTK_RESPONSE_ACCEPT on a
-  // double-click.)
-  if ((response == GTK_RESPONSE_OK || response == GTK_RESPONSE_ACCEPT) &&
-      IsPickerInputProtected()) {
-    return;
-  }
-
   // A null callback means a re-entrant call; the outer one owns the teardown.
   nsCOMPtr<nsIFilePickerShownCallback> callback = std::move(mCallback);
   if (!callback) {