diff --git a/satellites/palemoon.sat b/satellites/palemoon.sat
index cbfc3cf..81a4ad9 100644
--- a/satellites/palemoon.sat
+++ b/satellites/palemoon.sat
@@ -1,94 +1,84 @@
 # The Pale Moon team recommends building with GCC 4.9. While other versions like 5.x are known to work, they're unsupported.
 
 name=Pale-Moon
-version=27.9.4
-version_gcc=4.9.4
+version=28.0.0
 version_autoconf=2.13
 
-dlextract "https://github.com/MoonchildProductions/$name/archive/${version}_Release/$name-${version}_Release.tar.gz" \
-          '9b0bd412351b69b20b6af317cd323fa6'
+dlextract "https://github.com/MoonchildProductions/UXP/archive/PM${version}_Release.tar.gz" \
+          '962a423e7e66833caa46bed50e8fd70f'
 extrafile 'palemoon.desktop'
 
-( name=gcc version="$version_gcc"
-    dlextract "https://ftp.gnu.org/gnu/$name/$name-$version/$name-$version.tar.bz2" \
-              '87c24a4090c1577ba817ec6882602491'
-)
 ( name=autoconf version="$version_autoconf"
     dlextract "https://ftp.gnu.org/gnu/$name/$name-$version.tar.gz" \
               '9de56d4a161a723228220b0f425dc711'
 )
 _
 
-( cd "gcc-$version_gcc"
-    sed -i -e 's/\.\/fixinc\.sh/-c true/' gcc/Makefile.in
-    mkdir build; cd build
-    ../configure \
-        --prefix="$PWD/../install" \
-        --disable-bootstrap \
-        --disable-multilib \
-        --disable-nls \
-        --enable-languages=c++
-    make
-    make install
-)
-
 ( cd "autoconf-$version_autoconf"
     ./configure --prefix="$PWD/install" --program-suffix=-$version_autoconf
     make
     make install
 )
 
-cd "$name-${version}_Release"
+cd "UXP-PM${version}_Release"
+
+get_conf() {
+    if [ "$1" = "NSS_MINVER" ]; then
+        sed -ne 's/^ *AM_PATH_NSS(\([^,]*\),.*/\1/p' old-configure.in
+    else
+        sed -ne 's/^'"$1"'=\(.*\)/\1/p' old-configure.in
+    fi
+}
 
 cat > .mozconfig << EOF
+mk_add_options AUTOCLOBBER=1
+mk_add_options MOZ_OBJDIR="$PWD/pmbuild/"
+ac_add_options --enable-application=palemoon
+
+ac_add_options --enable-optimize="-O2"
+
 # Please see https://www.palemoon.org/redist.shtml for restrictions when using the official branding.
 #ac_add_options --enable-official-branding
 #export MOZILLA_OFFICIAL=1
 
-mk_add_options MOZ_CO_PROJECT=browser
-ac_add_options --enable-application=browser
-
-mk_add_options MOZ_OBJDIR="$PWD/pmbuild/"
-
-ac_add_options --enable-optimize="-O2 -msse2 -mfpmath=sse"
+ac_add_options --enable-default-toolkit=cairo-gtk2
+ac_add_options --enable-jemalloc
+ac_add_options --enable-strip
 ac_add_options --with-pthreads
 
-ac_add_options --disable-installer
+ac_add_options --disable-tests
+ac_add_options --disable-eme
+ac_add_options --disable-parental-controls
+ac_add_options --disable-accessibility
+ac_add_options --disable-webrtc
+ac_add_options --disable-gamepad
+ac_add_options --disable-necko-wifi
 ac_add_options --disable-updater
 
-ac_add_options --enable-release
-ac_add_options --enable-devtools
-ac_add_options --enable-jemalloc
-ac_add_options --enable-shared-js
-
-ac_add_options --enable-strip
-
 ac_add_options --x-libraries="/$dir_prefix/$dir_lib"
 
 # The section before this is kept up to date with https://developer.palemoon.org/Developer_Guide:Build_Instructions/Pale_Moon/Linux#head:Mozconfig_Files (with minor changes)
 # The following section are my additions.
 
 # Use system libraries (autoconf-2.13 && ./configure --help | grep system)
-ac_add_options --with-system-nspr
-ac_add_options --with-system-libevent
-ac_add_options --with-system-nss
-ac_add_options --with-system-jpeg
-ac_add_options --with-system-zlib
-ac_add_options --with-system-bz2
-ac_add_options --with-system-webp
-#ac_add_options --with-system-png - The APNG patch is not upstrean
+ac_add_options --with-system-ffi
 $(pkg-config --atleast-version=1.4.0 hunspell && echo ac_add_options --enable-system-hunspell)
-ac_add_options --enable-system-ffi
-ac_add_options --with-system-libvpx
-$(pkg-config --atleast-version="$(sed -ne 's/^SQLITE_VERSION=\(.*\)/\1/p' configure.in)" sqlite3 && echo ac_add_options --enable-system-sqlite)
 ac_add_options --enable-system-cairo
 ac_add_options --enable-system-pixman
-ac_add_options --with-system-icu
+$(pkg-config --atleast-version="$(get_conf SQLITE_VERSION)" sqlite3 && echo ac_add_options --enable-system-sqlite)
+ac_add_options --with-system-bz2
+$(pkg-config --atleast-version=58.1 icu-i18n && echo ac_add_options --with-system-icu)
+ac_add_options --with-system-jpeg
+ac_add_options --with-system-libevent
+ac_add_options --with-system-libvpx
+$(pkg-config --atleast-version="$(get_conf NSPR_MINVER)" nspr && echo ac_add_options --with-system-nspr)
+$(pkg-config --atleast-version="$(get_conf NSS_MINVER)" nss && echo ac_add_options --with-system-nss)
+#ac_add_options --with-system-png - The APNG patch is not upstream
+ac_add_options --with-system-zlib
 
 # Make pulseaudio support optional
 $(pkg-config --exists libpulse || echo ac_add_options --disable-pulseaudio)
 EOF
-#$(pkg-config --atleast-version="$(sed -ne 's/^    AM_PATH_NSS(\([^,]*\),.*/\1/p' configure.in)" nss && echo ac_add_options --with-system-nss)
 
 # This program is about as picky about compiler flags as it is about the compiler version.
 # Sigh...
@@ -96,7 +86,7 @@ export MOZ_MAKE_FLAGS="$MAKEFLAGS"
 unset CFLAGS CXXFLAGS LDFLAGS MAKEFLAGS
 
 # Build
-PATH="$PWD/../gcc-$version_gcc/install/bin:$PWD/../autoconf-$version_autoconf/install/bin:$PATH" \
+PATH="$PWD/../autoconf-$version_autoconf/install/bin:$PATH" \
 make -f client.mk build
 
 # Install