diff --git a/modules/home/librewolf.nix b/modules/home/librewolf.nix
index f2a0a3f..58bbdf8 100644
--- a/modules/home/librewolf.nix
+++ b/modules/home/librewolf.nix
@@ -47,12 +47,6 @@
           install_url = "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi";
           installation_mode = "force_installed";
         };
-
-        # Catppuccin Theme
-        "{15cb5e64-94bd-41aa-91cf-751bb1a84972}" = {
-          install_url = "https://addons.mozilla.org/firefox/downloads/latest/catppuccin-macchiato-lavender2/latest.xpi";
-          installation_mode = "force_installed";
-        };
       };
 
       Preferences = {
@@ -69,7 +63,12 @@
         "sidebar.verticalTabs" = true;
         "sidebar.main.tools" = "bookmarks,history,tabs";
         "sidebar.visibility" = "always";
+
+        "extensions.activeThemeID" = {
+          Value = "firefox-alpenglow@mozilla.org";
+          Status = "locked";
+        };
       };
     };
   };
-}
+}
\ No newline at end of file