Am Mittwoch, 12. September 2018 schrieb Pisini, John:
> I should add you have to have the language installed. The box I'm on right
> now only has english language enabled so the above does nothing but
> generate an error and launch app in English.
>
>
> $ LC_ALL=ru_RU.UTF-8 firefox
>
> (process:12242): Gtk-WARNING **: Locale not supported by C library.
> Using the fallback 'C' locale.

Thanks, John. I guess you haven't read the whole thread. This has been suggested 
before and the foundings are that that sadly works only with non-TDE programs.

Kind regards,
Stefan