diff --git a/home/default.nix b/home/default.nix
index 4cc54bd..3c2f2f2 100644
--- a/home/default.nix
+++ b/home/default.nix
@@ -25,8 +25,6 @@
     templates = "${config.xdg.dataHome}/templates";
   };
 
-  services.syncthing.enable = true;
-
   home.file.".npmrc".text = ''
     prefix = ${config.xdg.dataHome}/npm/packages
   '';
@@ -171,5 +169,9 @@
   };
 
   programs.obs-studio.enable = true;
+
+  services.opensnitch-ui.enable = true;
+  services.syncthing.enable = true;
+
 }
 
diff --git a/home/desktop/default.nix b/home/desktop/default.nix
index 287f4e4..47acdbe 100644
--- a/home/desktop/default.nix
+++ b/home/desktop/default.nix
@@ -33,7 +33,7 @@
       magnifier-zoom-out = [];
       help = [];
     };
-    "/org/gnome/shell/keybindings" = {
+    "org/gnome/shell/keybindings" = {
       toggle-quick-settings = ["<Super>comma"];
     };
     "org/gnome/desktop/wm/keybindings" = {
diff --git a/home/firefox.nix b/home/firefox.nix
index edc88d1..346861b 100644
--- a/home/firefox.nix
+++ b/home/firefox.nix
@@ -95,7 +95,13 @@
               updateInterval = 24 * 60 * 60 * 1000;
               definedAliases = [ "@gs" ];
             };
-            "Wikipedia (en)".metaData.alias = "@wiki";
+            "Leo" = {
+              urls = [{ template = "https://dict.leo.org/englisch-deutsch/{searchTerms}"; }];
+              iconUpdateURL = "https://dict.leo.org/img/favicons/ende-32.png";
+              updateInterval = 24 * 60 * 60 * 1000;
+              definedAliases = [ "@leo" ];
+            };
+            "Wikipedia".metaData.alias = "@wiki";
             "Bing".metaData.hidden = true;
             "Amazon.de".metaData.hidden = true;
           };
diff --git a/system/default.nix b/system/default.nix
index 4c01bdb..a1a0e5f 100644
--- a/system/default.nix
+++ b/system/default.nix
@@ -24,6 +24,8 @@
     allowedTCPPorts = [ 4000 ];
   };
 
+  services.opensnitch.enable = true;
+
   time.timeZone = "Europe/Berlin";
   i18n.extraLocaleSettings = {
     LC_TIME = "en_GB.UTF-8";