Created attachment 509554 [details] emerge --info With firefox-57.0.1 there is no way that I found to avoid merging networkmanager as a dependency. The ebuild makes me think that it is impossible: www-client/firefox/firefox-57.0.1.ebuild : ` MOZCONFIG_OPTIONAL_WIFI=1 inherit check-reqs flag-o-matic toolchain-funcs eutils gnome2-utils mozconfig-v6.57 [...] ` eclass/mozconfig-v6.57.eclass : `if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]]; then if [[ ${MOZCONFIG_OPTIONAL_WIFI} = "enabled" ]]; then IUSE+=" +wifi" else IUSE+=" wifi" fi RDEPEND+=" wifi? ( kernel_linux? ( >=sys-apps/dbus-0.60 >=dev-libs/dbus-glib-0.72 net-misc/networkmanager ) )" fi ` This is quite annoying since networkmanager breaks wpa_supplicant
NM is only required if you set USE=wifi.
Solution right there in front of you.