diff --git a/overlay/usr/bin/install_flatseal.sh b/overlay/usr/bin/install_flatseal.sh
new file mode 100755
index 0000000..5eb3803
--- /dev/null
+++ b/overlay/usr/bin/install_flatseal.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+echo "**** Installing/upgrading Flatseal via flatpak ****"
+
+# Install Flatseal
+flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo 
+flatpak --user install --assumeyes --or-update com.github.tchx84.Flatseal
+
+# Configure Flatseal
+echo "Configure Flatseal..."
+sed -i 's/^Categories=.*$/Categories=Utility;/' \
+    ${USER_HOME}/.local/share/flatpak/exports/share/applications/com.github.tchx84.Flatseal.desktop
+
+echo "DONE"
diff --git a/overlay/usr/bin/install_protonup.sh b/overlay/usr/bin/install_protonup.sh
index 97cc933..a46ad92 100755
--- a/overlay/usr/bin/install_protonup.sh
+++ b/overlay/usr/bin/install_protonup.sh
@@ -6,7 +6,7 @@ echo "**** Installing/upgrading ProtonUp-Qt via flatpak ****"
 flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo 
 flatpak --user install --assumeyes --or-update net.davidotek.pupgui2
 
-# Configure Firefox as the default browser
+# Configure ProtonUp-Qt
 echo "Configure ProtonUp-Qt..."
 sed -i 's/^Categories=.*$/Categories=Utility;/' \
     ${USER_HOME}/.local/share/flatpak/exports/share/applications/net.davidotek.pupgui2.desktop