diff --git a/modules/firefox.nix b/modules/firefox.nix
index b75706a..3c66c7d 100644
--- a/modules/firefox.nix
+++ b/modules/firefox.nix
@@ -99,4 +99,9 @@
     DisableMasterPasswordCreation = true;
     DisableProfileImport = true;
   };
+
+  programs.firefox.preferences = {
+    "sidebar.revamp" = true;
+    "sidebar.verticalTabs" = true;
+  };
 }