diff --git a/programs/firefox.nix b/programs/firefox.nix
index d4533a1..4550026 100644
--- a/programs/firefox.nix
+++ b/programs/firefox.nix
@@ -37,6 +37,11 @@
           install_url = "https://addons.mozilla.org/firefox/downloads/file/4251917/latest.xpi";
           installation_mode = "force_installed";
         };
+        # legacy wikipedia layout
+        "{484f3bc9-b13b-4498-8ea6-124c199c5ca8}" = {
+          install_url = "https://addons.mozilla.org/firefox/downloads/file/4100662/latest.xpi";
+          installation_mode = "force_installed";
+        };
       };
     };
     profiles.krizej = {