diff --git a/home-manager/modules/de2u.nix b/home-manager/modules/de2u.nix
index 4e8528a..2dd59d1 100644
--- a/home-manager/modules/de2u.nix
+++ b/home-manager/modules/de2u.nix
@@ -35,8 +35,6 @@ in
     programs.firefox = {
       enable = lib.mkDefault true;
 
-      enableGnomeExtensions = true;
-
       package = lib.mkDefault ((if pkgs ? librewolf then pkgs.librewolf else pkgs.firefox).override {
         cfg = {
           enableGnomeExtensions = true;
@@ -139,6 +137,7 @@ in
       gnomeExtensions.appindicator
       gnomeExtensions.compiz-windows-effect
       gnomeExtensions.unite-shell
+      gnomeExtensions.gamemode
     ];
 
     systemd.user.sessionVariables = {
@@ -251,6 +250,7 @@ in
           "appindicatorsupport@rgcjonas.gmail.com"
           "launch-new-instance@gnome-shell-extensions.gcampax.github.com"
           "unite@hardpixel.eu"
+          "gamemode@christian.kellner.me"
         ];
       };
       "org/gnome/desktop/peripherals/touchpad" = {
diff --git a/modules/workstation.nix b/modules/workstation.nix
index 980e383..62fa133 100644
--- a/modules/workstation.nix
+++ b/modules/workstation.nix
@@ -106,6 +106,9 @@ in
     # Needed for lots of controller stuff
     hardware.uinput.enable = lib.mkDefault true;
 
+    # Optimizes running games
+    programs.gamemode.enable = lib.mkDefault true;
+
     # Allows realtime stuff, useful for games, audio etc
     services.udev.extraRules = ''
       KERNEL=="rtc0", GROUP="users"