diff --git a/system/firefox.nix b/system/firefox.nix
index e5b39d28..63235289 100644
--- a/system/firefox.nix
+++ b/system/firefox.nix
@@ -25,7 +25,6 @@
       };
       DefaultDownloadDirectory = "\${home}/Downloads";
       DisableAppUpdate = true;
-      # DisableBuiltinPDFViewer = true;
       DisableFirefoxAccounts = true;
       DisableFirefoxScreenshots = true;
       DisableFirefoxStudies = true;
@@ -53,11 +52,6 @@
           installation_mode = "force_installed";
           install_url = "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi";
         };
-        # Sweet-Dark theme
-        # "{59f619c8-220b-4a27-8918-bf1537bc060a}" = {
-        #   installation_mode = "force_installed";
-        #   install_url = "https://addons.mozilla.org/firefox/downloads/latest/sweet-dark/latest.xpi";
-        # };
         # Tokyo Night Niivu
         "{c6698fd1-fe9b-4eae-95d5-fe1703820469}" = {
           installation_mode = "force_installed";