diff --git a/scripts/hyprland/start_services.sh b/scripts/hyprland/start_services.sh
index 78453a0..024ecbc 100755
--- a/scripts/hyprland/start_services.sh
+++ b/scripts/hyprland/start_services.sh
@@ -5,11 +5,6 @@
 #
 dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP &
 
-#
-# Start authentication polkit.
-#
-/nix/store/$(ls -la /nix/store | rg '^d.*polkit-kde-agent.*\d$' | awk '{print $9}')/libexec/polkit-kde-authentication-agent-1 &
-
 #
 # Start waybar.
 #
@@ -65,3 +60,8 @@ fcitx5 &
 # Start the blueman applet for managing bluetooth devices
 #
 blueman-applet &
+
+#
+# Start the brige between Proton Mail and Thunderbird
+#
+protonmail-bridge-gui