On Monday 13 June 2016 11:01:56 Hans wrote: Answerinhg myself >Hi, >I discovered, that the removal of kde-l10n-de by the package manager also > effected packages, which got their own *-l10n-de.
> For example libreoffice and firefox-esr now are also in English. I guess, > that > the removal of kde-l10n-de switched something internally of in kde, so that > the other applications are now in English, too. I found out, that due to the removal of kde-l10n-de the following packages were altered: ~/.config/kdeglobals ~/.config/plasma-locale-settings.sh ~/.config/plasma-localerc All files lost either the entry of en_US and changed the German locale from the correct de_DE@euro to nds_de_DE. If you manually correct these to your own language, most non-kde applications are again in your preferred language (of course the necessary *-l10n-de packages have to be installed). Hope this helps a little bit. Happy hacking. Hans