diff --git a/user/firefox.nix b/user/firefox.nix
index f565375..1dd599c 100644
--- a/user/firefox.nix
+++ b/user/firefox.nix
@@ -87,11 +87,6 @@ in
             url = "https://addons.mozilla.org/firefox/downloads/file/1176165/corretor-65.2018.12.8.xpi";
             hash = "sha256-/rFQtJHdgemMkGAd+KWuWxVA/BwSIkn6sk0XZE0LrGk=";
           })
-          (pkgs.fetchFirefoxAddon {
-            name = "new_tab_same_group";
-            url = "https://addons.mozilla.org/firefox/downloads/file/4602621/new_tab_same_group-1.7.0.xpi";
-            hash = "sha256-oIpQdhW3ma/MCs1hLQMcZluUnaxeW7u9nEM6iovV40E=";
-          })
         ];
       };
       profiles = {