diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-universal-internationalization-install/run b/root/etc/s6-overlay/s6-rc.d/init-mod-universal-internationalization-install/run
index 0fa1024..cfe33f0 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-mod-universal-internationalization-install/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-mod-universal-internationalization-install/run
@@ -739,3 +739,26 @@ elif [[ "${LSIO_BASE}" == "arch" ]] && [[ ! -f /usr/share/fonts/noto-cjk/NotoSan
 else
   echo "**** International Fonts/Locales installed skipping ****"
 fi
+
+# Add Firefox Langpacks
+if which firefox && [ ! -f /langlock ]; then
+  echo "Installing firefox langpacks"
+  FIREFOX_VERSION=$(curl -sI https://download.mozilla.org/?product=firefox-latest | awk -F '(releases/|/win32)' '/Location/ {print $2}')
+  RELEASE_URL="https://releases.mozilla.org/pub/firefox/releases/${FIREFOX_VERSION}/win64/xpi/"
+  LANGS=$(curl -Ls ${RELEASE_URL} | awk -F '(xpi">|</a>)' '/href.*xpi/ {print $2}' | tr '\n' ' ')
+  if [[ "${LSIO_BASE}" == "alpine" ]]; then
+    EXTENSION_DIR=/usr/lib/firefox/distribution/extensions/
+  else 
+    EXTENSION_DIR=/usr/lib/firefox-addons/distribution/extensions/
+  fi
+  mkdir -p ${EXTENSION_DIR}
+  for LANG in ${LANGS}; do
+    LANGCODE=$(echo ${LANG} | sed 's/\.xpi//g')
+    echo "Downloading ${LANG} Firefox Language pack"
+    curl -o \
+      ${EXTENSION_DIR}langpack-${LANGCODE}@firefox.mozilla.org.xpi -Ls \
+      ${RELEASE_URL}${LANG}
+  done
+fi
+
+touch /langlock