On Thu, 17 Mar 2016 12:13:47 +0100, Ralf Mardorf wrote: >archlinux-xdg-menu Isn't the culprit, but https://wiki.archlinux.org/index.php/xdg-menu mentions that some apps (not packages) install to desktop files to the user's home: "To add applications to the menu which install their desktop entry to a user folder such as ~/.local/share/applications, edit the [snip]" [rocketmouse@archlinux ~]$ grep all\( -A1 /var/aur/palemoon-bin/palemoon.install post_install() { update-desktop-database -q Seems to be either the culprit. I don't use, but have some DEs installed, but e.g. Xfce seemingly doesn't automatically install desktop files to the users home. So perhaps launching palemoon does it.