Use this to install Firefox onto Amazon Linux 2. Current as of Firefox 82.0

install_firefox_onto_amzn_linux2.sh

yum -y install pango cairo-gobject libXinerama libXrandr dbus-glib wget libXcursor
rpm -ivh --nodeps --replacepkgs http://mirror.centos.org/centos/7/os/x86_64/Packages/atk-2.28.1-2.el7.x86_64.rpm && \
  rpm -ivh --nodeps --replacepkgs http://mirror.centos.org/centos/7/os/x86_64/Packages/at-spi2-atk-2.26.2-1.el7.x86_64.rpm && \
  rpm -ivh --nodeps --replacepkgs http://mirror.centos.org/centos/7/os/x86_64/Packages/at-spi2-core-2.28.0-1.el7.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/g/GConf2-3.2.6-7.fc20.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/l/libXScrnSaver-1.2.2-6.fc20.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/l/libxkbcommon-0.3.1-1.fc20.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/l/libwayland-client-1.2.0-3.fc20.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/l/libwayland-cursor-1.2.0-3.fc20.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/g/gtk3-3.10.4-1.fc20.x86_64.rpm && \
  rpm -ivh --nodeps http://dl.fedoraproject.org/pub/archive/fedora/linux/releases/16/Fedora/x86_64/os/Packages/gdk-pixbuf2-2.24.0-1.fc16.x86_64.rpm && \
  rpm -Uvh --nodeps https://dl.fedoraproject.org/pub/archive/fedora/linux/releases/20/Fedora/x86_64/os/Packages/g/glib2-2.38.2-2.fc20.x86_64.rpm