diff --git a/homeManagerModules/firefox/custom-css.nix b/homeManagerModules/firefox/custom-css.nix
index 75aa063b..552f9952 100644
--- a/homeManagerModules/firefox/custom-css.nix
+++ b/homeManagerModules/firefox/custom-css.nix
@@ -1,4 +1,4 @@
-hostName:
+rounding:
 # css
 ''
   /* Hide unused menu rows */
@@ -101,11 +101,7 @@ hostName:
 
   :root:not([chromehidden~="toolbar"]) #PanelUI-menu-button[open]>.toolbarbutton-badge-stack {
       width: unset !important;
-      border-top-left-radius: ${
-    if hostName == "wim"
-    then "18"
-    else "0"
-  }px !important;
+      border-top-left-radius: ${toString rounding}px !important;
   }
 
   :root:not([chromehidden~="toolbar"]) #PanelUI-menu-button>stack {
diff --git a/homeManagerModules/firefox/default.nix b/homeManagerModules/firefox/default.nix
index d8896db4..22bd6438 100644
--- a/homeManagerModules/firefox/default.nix
+++ b/homeManagerModules/firefox/default.nix
@@ -1,12 +1,12 @@
 self: {
-  osConfig,
+  config,
   pkgs,
   ...
 }: let
-  inherit (osConfig.networking) hostName;
-
   inherit (self.legacyPackages.${pkgs.system}) firefoxAddons;
 
+  rounding = (config.wayland.windowManager.hyprland.settings.decoration.rounding or 2) - 2;
+
   firefox-gx = pkgs.callPackage ./gx-theme.nix {
     inherit (self.inputs) firefox-gx-src;
     inherit (import "${self}/lib" {}) mkVersion;
@@ -28,7 +28,7 @@ in {
 
         userChrome = ''
           @import url("file://${firefox-gx}/chrome/userChrome.css");
-          ${import ./custom-css.nix hostName}
+          ${import ./custom-css.nix rounding}
         '';
 
         settings = {