diff --git a/tests/default.nix b/tests/default.nix
index e277e0b2e..0a96feb08 100644
--- a/tests/default.nix
+++ b/tests/default.nix
@@ -291,6 +291,7 @@ in import nmtSrc {
     ./modules/programs/firefox
     ./modules/programs/firefox/firefox.nix
     ./modules/programs/firefox/floorp.nix
+    ./modules/programs/firefox/librewolf.nix
     ./modules/programs/foot
     ./modules/programs/freetube
     ./modules/programs/fuzzel
diff --git a/tests/modules/programs/firefox/librewolf.nix b/tests/modules/programs/firefox/librewolf.nix
new file mode 100644
index 000000000..3a77e0f1d
--- /dev/null
+++ b/tests/modules/programs/firefox/librewolf.nix
@@ -0,0 +1 @@
+import ./common.nix "librewolf"