diff --git a/firefox-addons/default.nix b/firefox-addons/default.nix
index 607a80d..82d58c1 100644
--- a/firefox-addons/default.nix
+++ b/firefox-addons/default.nix
@@ -28,5 +28,6 @@ in
       ublock-origin
       istilldontcareaboutcookies
       keepassxc-browser
+      own-addons.simple-style-fox-2
     ];
   }
diff --git a/firefox-addons/derivations.nix b/firefox-addons/derivations.nix
index 915cfc7..6b0dec1 100644
--- a/firefox-addons/derivations.nix
+++ b/firefox-addons/derivations.nix
@@ -71,4 +71,18 @@ in
         platforms = platforms.all;
         };
       };
+    "simple-style-fox-2" = buildFirefoxXpiAddon {
+      pname = "simple-style-fox-2";
+      version = "10.0";
+      addonId = "{317526c6-ff2b-49c9-822e-d77b4a3da1d1}";
+      url = "https://addons.mozilla.org/firefox/downloads/file/3934220/simple_style_fox_2-10.0.xpi";
+      sha256 = "1aaac3ba08d21086d7087015f92a27661940df45a97bf5680588c883f799a97d";
+      meta = with lib;
+      {
+        description = "Simple style fox 2";
+        license = licenses.cc-by-30;
+        mozPermissions = [];
+        platforms = platforms.all;
+        };
+      };
     }