--- firefox-114.0/toolkit/xre/glxtest/glxtest.cpp.old   2023-03-24 11:53:38.508040103 -0400
+++ firefox-114.0/toolkit/xre/glxtest/glxtest.cpp       2023-03-24 11:55:04.631899710 -0400
@@ -1242,7 +1242,9 @@
   log("GLX_TEST: childgltest start\n");
 
   // Get a list of all GPUs from the PCI bus.
-  get_pci_status();
+  if (getenv("MOZ_USE_LIBPCI")) {
+    get_pci_status();
+  }
 
 #ifdef MOZ_WAYLAND
   if (aWayland) {