Output of emerge -pqv '=www-client/firefox-54.0.1::gentoo'

emergeverbose.txt (text/plain), 760 bytes, created by Doppler on 2017-07-15 20:22:39 UTC

[ebuild     U ] www-client/firefox-54.0.1 [54.0] USE="dbus gmp-autoupdate hwaccel jemalloc pgo pulseaudio startup-notification wifi -bindist -custom-cflags -custom-optimization -debug -hardened -jack (-neon) -nsplugin (-selinux) (-system-cairo) -system-harfbuzz -system-icu -system-jpeg -system-libevent -system-libvpx -system-sqlite {-test}" L10N="-ach -af -an -ar -as -ast -az -bg -bn-BD -bn-IN -br -bs -ca -cak -cs -cy -da -de -dsb -el -en-GB -en-ZA -eo -es-AR -es-CL -es-ES -es-MX -et -eu -fa -ff -fi -fr -fy -ga -gd -gl -gn -gu -he -hi -hr -hsb -hu -hy -id -is -it -ja -ka -kab -kk -km -kn -ko -lij -lt -lv -mai -mk -ml -mr -ms -nb -nl -nn -or -pa -pl -pt-BR -pt-PT -rm -ro -ru -si -sk -sl -son -sq -sr -sv -ta -te -th -tr -uk -uz -vi -xh -zh-CN -zh-TW"