--- a/MozillaFirefox/create-tar.sh	Fri Feb 09 13:28:07 2018 +0100
+++ b/MozillaFirefox/create-tar.sh	Fri Feb 09 16:30:49 2018 +0100
@@ -10,6 +10,11 @@
 RELEASE_TAG="73ef186ad51ac2c4fc27b1f149fcc94355fe7dc6"
 VERSION="58.99"
 
+# check required tools
+test -x /usr/bin/hg || ( echo "hg missing: execute zypper in mercurial"; exit 5 )
+test -x /usr/bin/jq || ( echo "jq missing: execute zypper in jq"; exit 5 )
+
+
 # mozilla
 if [ -d mozilla ]; then
   pushd mozilla
@@ -54,19 +59,19 @@
 # l10n
 echo "fetching locales..."
 test ! -d l10n && mkdir l10n
-for locale in $(awk '{ print $1; }' l10n_changesets.txt); do
-  case $locale in
-    ja-JP-mac|en-US)
-      ;;
-    *)
-      echo "reading changeset information for $locale"
-      _changeset=$(grep ^$locale l10n_changesets.txt | awk '{ print $2; }')
-      echo "fetching $locale changeset $_changeset ..."
-      hg clone http://hg.mozilla.org/l10n-central/$locale l10n/$locale
-      [ "$RELEASE_TAG" == "default" ] || hg -R l10n/$locale up -C -r $_changeset
-      ;;
-  esac
-done
+jq -r 'to_entries[]| "\(.key) \(.value|.revision)"' mozilla/browser/locales/l10n-changesets.json | \
+  while read locale changeset ; do
+    case $locale in
+      ja-JP-mac|en-US)
+        ;;
+      *)
+        echo "reading changeset information for $locale"
+        echo "fetching $locale changeset $changeset ..."
+        hg clone http://hg.mozilla.org/l10n-central/$locale l10n/$locale
+        [ "$RELEASE_TAG" == "default" ] || hg -R l10n/$locale up -C -r $changeset
+        ;;
+    esac
+  done
 echo "creating l10n archive..."
 tar $compression -cf l10n-$VERSION.tar.xz --exclude=.hgtags --exclude=.hgignore --exclude=.hg l10n