New comment by eoli3n on void-packages repository https://github.com/void-linux/void-packages/issues/27255#issuecomment-748582620 Comment: it seems strange to me that this is so hard to fix. Could it be related to the way the package is built ? - ``firefox`` [PKGBUILD](https://github.com/archlinux/svntogit-packages/blob/packages/firefox/trunk/PKGBUILD) | [template](https://github.com/void-linux/void-packages/blob/master/srcpkgs/firefox/template) | [ebuild](https://gitweb.gentoo.org/repo/gentoo.git/tree/www-client/firefox/firefox-84.0.ebuild) - ``firefox-i18n`` [PKGBUILD](https://github.com/archlinux/svntogit-packages/blob/packages/firefox-i18n/trunk/PKGBUILD) | [template](https://github.com/void-linux/void-packages/blob/df96fea1316d646c06b7705e619e9b61dde9c476/srcpkgs/firefox-i18n/template) In ``firefox`` PKGBUILD, some things which could be related to this, that i can't find in template: - Alllow addon sideload : https://github.com/archlinux/svntogit-packages/blob/packages/firefox/trunk/PKGBUILD#L75 - Use LANG env var : https://github.com/archlinux/svntogit-packages/blob/packages/firefox/trunk/PKGBUILD#L153 It seems that Archlinux ``firefox-i18n`` package only put the file and ``firefox`` package process it. Void has some scripting in ``firefox-i18n``.