You can download the official Lightning releases here: <https://addons.mozilla.org/de/thunderbird/addon/lightning/versions/> They include all localizations.
For problems with third-party packages I'd suggest to contact the third-party package creator.
You can download the official Lightning releases here: <https:/ /addons. mozilla. org/de/ thunderbird/ addon/lightning /versions/> They include all localizations.
For problems with third-party packages I'd suggest to contact the third-party package creator.