diff --git a/gui-software.nix b/gui-software.nix
index 0f87471..ecf1a74 100644
--- a/gui-software.nix
+++ b/gui-software.nix
@@ -39,9 +39,17 @@
 
   xdg.mimeApps.defaultApplications = {
     "WebBrowser" = "firefox.desktop";
+    "x-scheme-handler/http" = "firefox.desktop";
+    "x-scheme-handler/https" = "firefox.desktop";
+    "x-scheme-handler/chrome" = "firefox.desktop";
+    "text/html" = "firefox.desktop";
+    "application/x-extension-htm" = "firefox.desktop";
+    "application/x-extension-html" = "firefox.desktop";
+    "application/x-extension-shtml" = "firefox.desktop";
+    "application/xhtml+xml" = "firefox.desktop";
+    "application/x-extension-xhtml" = "firefox.desktop";
+    "application/x-extension-xht" = "firefox.desktop";
   };
 
-  home.sessionVariables = {
-    BROWSER = "firefox";
-  };
+  home.sessionVariables = { BROWSER = "firefox"; };
 }