tce-load -i compiletc autoconf2.13 cbindgen dbus-glib-dev gtk3-dev gtk2-dev libnotify-dev node-dev nss-dev alsa-dev startup-notification-dev zip unzip icu70-dev libevent-dev libwebp1-dev clang llvm-dev libXt-dev curl-dev yasm nasm libvpx18-dev

wget https://archive.mozilla.org/pub/firefox/releases/91.5.1esr/source/firefox-91.5.1esr.source.tar.xz
wget https://www.linuxfromscratch.org/patches/blfs/svn/firefox-91.5.1esr-buildfix-1.patch
wget https://www.linuxfromscratch.org/patches/blfs/svn/firefox-91.5.1esr-disable_rust_test-1.patch

cd firefox-91.5.1

cp mozconfig ./

patch -Np1 -i ../firefox-91.5.1esr-disable_rust_test-1.patch
patch -Np1 -i ../firefox-91.5.1esr-buildfix-1.patch

sudo ln -s /tmp/tcloop/nss-dev/usr/local/include/nss/* /usr/local/include

export CC="gcc" CXX="g++"
export MACH_USE_SYSTEM_PYTHON=1
export MOZBUILD_STATE_PATH=${PWD}/mozbuild
./mach build [2h 17m 35s]

sudo MACH_USE_SYSTEM_PYTHON=1 ./mach install

sudo mkdir -pv /usr/local/share/applications
sudo mkdir -pv /usr/local/share/pixmaps

MIMETYPE="text/xml;text/mml;application/xhtml+xml"
MIMETYPE="$MIMETYPE;application/xhtml+xml;application/vnd.mozilla.xul+xml"
MIMETYPE="$MIMETYPE;x-scheme-handler/http;x-scheme-handler/https"

sudo cat > /usr/local/share/applications/firefox.desktop << EOF
[Desktop Entry]
Encoding=UTF-8
Name=Firefox Web Browser
Comment=Browse the World Wide Web
GenericName=Web Browser
Exec=firefox %u
Terminal=false
Type=Application
Icon=firefox
Categories=GNOME;GTK;Network;WebBrowser;
MimeType=$MIMETYPE
StartupNotify=true
EOF

unset MIMETYPE