diff --git a/modules/desktop/apps/default.nix b/modules/desktop/apps/default.nix
index 7a810f5..997b9c5 100644
--- a/modules/desktop/apps/default.nix
+++ b/modules/desktop/apps/default.nix
@@ -7,6 +7,7 @@
     ./kitty.nix
     ./rofi
     ./spotify.nix
+    ./xdg-mime.nix
     ./zathura.nix
   ];
   home-manager.users.moritz = {
diff --git a/modules/desktop/apps/xdg-mime.nix b/modules/desktop/apps/xdg-mime.nix
new file mode 100644
index 0000000..51dc1b1
--- /dev/null
+++ b/modules/desktop/apps/xdg-mime.nix
@@ -0,0 +1,42 @@
+{ config, lib, pkgs, ... }:
+
+let
+  browser = [ "firefox.desktop" ];
+  associations = {
+    "text/html" = browser;
+    "x-scheme-handler/http" = browser;
+    "x-scheme-handler/https" = browser;
+    "x-scheme-handler/ftp" = browser;
+    "x-scheme-handler/chrome" = browser;
+    "x-scheme-handler/about" = browser;
+    "x-scheme-handler/unknown" = browser;
+    "application/x-extension-htm" = browser;
+    "application/x-extension-html" = browser;
+    "application/x-extension-shtml" = browser;
+    "application/xhtml+xml" = browser;
+    "application/x-extension-xhtml" = browser;
+    "application/x-extension-xht" = browser;
+  };
+in {
+  home-manager.users.moritz = {
+    xdg.mime.enable = true;
+    xdg.mimeApps.enable = true;
+    xdg.mimeApps.associations.added = associations;
+    xdg.mimeApps.defaultApplications = associations;
+    xdg.desktopEntries = {
+      firefox = {
+        name = "Firefox";
+        genericName = "Web Browser";
+        exec = "${pkgs.firefox}/bin/firefox %U";
+        terminal = false;
+        categories = [ "Application" "Network" "WebBrowser" ];
+        mimeType = [
+          "text/html"
+          "text/xml"
+          "x-scheme-handler/http"
+          "x-scheme-handler/https"
+        ];
+      };
+    };
+  };
+}