Hello Jonas,please, see the pinned comment in AUR website: https://aur.archlinux.org/packages/icecat/
Best regards -- Joan Figueras On 03/07/17 06:41, Jonas wrote:
Fail the installation of icecat in Arch GNU/Linux for the unknown public key: 3C76EED7D7E04784-- http://gnuzilla.gnu.org
-- http://gnuzilla.gnu.org
