diff --git a/hosts/pinwheel/modules/firefox/default.nix b/hosts/pinwheel/modules/firefox/default.nix
index 6a2ec44..35669ce 100644
--- a/hosts/pinwheel/modules/firefox/default.nix
+++ b/hosts/pinwheel/modules/firefox/default.nix
@@ -64,6 +64,8 @@ let
     "general.smoothScroll" = true;
     "apz.gtk.kinetic_scroll.enabled" = false;
     "network.dns.force_waiting_https_rr" = false;
+    "browser.smartwindow.enabled" = false;
+    "browser.smartwindow.isDefaultWindow" = false;
   };
 in
 {