This shell command downloads and installs all Firefox language packs for you. Use it with any Arch-related distro you like: Arch Linux, Manjaro, EndeavourOS, Garuda Linux, ArcoLinux, Artix Linux, CachyOS, RebornOS, Hyperbola, Parabola, Archcraft, ArchLabs, Crystal Linux.
sudo pacman -S --noconfirm --needed $(pacman -Ss ^firefox-i18n- | awk '{print $1}' | grep '^extra/firefox-i18n-' | cut -d'/' -f2)this is not recommended for the nightly or dev editions, see https://wiki.archlinux.org/title/Firefox#Installation:
