diff --git a/users/rin/home.nix b/users/rin/home.nix
index be1ec55..fea6414 100644
--- a/users/rin/home.nix
+++ b/users/rin/home.nix
@@ -25,6 +25,7 @@
 
   imports = [
     ./gtk.nix
+    ./xdg.nix
 
     ./alacritty.nix
     ./neovim.nix
@@ -39,12 +40,6 @@
     ./i3.nix
   ];
 
-  xdg = {
-    enable = true;
-    mime.enable = true;
-    mimeApps.enable = true;
-  };
-
   programs = {
     feh.enable = true;
 
diff --git a/users/rin/xdg.nix b/users/rin/xdg.nix
new file mode 100644
index 0000000..1106c5f
--- /dev/null
+++ b/users/rin/xdg.nix
@@ -0,0 +1,31 @@
+{ config, ... }:
+let
+  genFF = mimeTypes: builtins.listToAttrs (builtins.map (mimeType: {
+    name = mimeType;
+    value = "firefox.desktop";
+  }) mimeTypes);
+
+  ffMimes = genFF [
+    "x-scheme-handler/http"
+    "x-scheme-handler/https"
+    "x-scheme-handler/chrome"
+    "text/html"
+    "application/x-extension-htm"
+    "application/x-extension-html"
+    "application/x-extension-shtml"
+    "application/xhtml+xml"
+    "application/x-extension-xhtml"
+    "application/x-extension-xht"
+  ];
+in {
+  xdg = {
+    enable = true;
+    mime.enable = true;
+    mimeApps = {
+      enable = true;
+
+      associations.added = ffMimes;
+      defaultApplications = ffMimes;
+    };
+  };
+}