diff --git a/mozjs115/autoconf/autoconf.build b/mozjs115/autoconf/autoconf.build
new file mode 100644
index 0000000..05e53f1
--- /dev/null
+++ b/mozjs115/autoconf/autoconf.build
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+# Copyright 2005-2016  Patrick J. Volkerding, Sebeka, Minnesota, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+PKGNAM=autoconf
+VERSION=2.13
+BUILD=${BUILD:-1}
+
+NUMJOBS=${NUMJOBS:-" -j7 "}
+
+# Automatically determine the architecture we're building on:
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) export ARCH=i486 ;;
+    arm*) export ARCH=arm ;;
+    # Unless $ARCH is already set, use uname -m for all other archs:
+       *) export ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp}
+PKG=$TMP/package-autoconf
+
+rm -rf $PKG
+mkdir -p $TMP $PKG
+
+cd $TMP
+rm -rf autoconf-$VERSION
+tar xvf $CWD/autoconf-$VERSION.tar.xz || exit 1
+cd autoconf-$VERSION
+
+zcat $CWD/autoconf-2.13-consolidated_fixes-1.patch.gz | patch -p1 --verbose || exit 1
+
+chown -R root:root .
+find . \
+  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+  -exec chmod 755 {} \; -o \
+  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+  -exec chmod 644 {} \;
+
+# Build a temporary copy of autoconf-2.13 only to be used to compile
+# js52, since it somewhat inexplicably requires this ancient version:
+
+rm -rf $TMP/autoconf-tmp
+mkdir -p $TMP/autoconf-tmp
+# This will be at the beginning of the $PATH, so protect against nonsense
+# happening in /tmp:
+chmod 700 $TMP/autoconf-tmp
+rm -rf $TMP/autoconf-tmp/*
+mkdir -p $TMP/autoconf-tmp/usr
+
+./configure \
+  --prefix=$TMP/autoconf-tmp/usr \
+  --program-suffix=-2.13 \
+  --infodir=$TMP/autoconf-tmp/usr/info \
+  --mandir=$TMP/autoconf-tmp/usr/man \
+  --build=$ARCH-slackware-linux || exit 1
+
+make $NUMJOBS || make || exit 1
+make install || exit 1
+
diff --git a/mozjs115/mozjs115.SlackBuild b/mozjs115/mozjs115.SlackBuild
new file mode 100644
index 0000000..016d958
--- /dev/null
+++ b/mozjs115/mozjs115.SlackBuild
@@ -0,0 +1,173 @@
+#!/bin/bash
+
+# Copyright 2011, 2018  Robby Workman, Tuscaloosa, Alabama, USA
+# Copyright 2019, 2020, 2022, 2023, 2024  Patrick J. Volkerding, Sebeka, MN, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#  Modified for CSB Project
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PKGNAM=mozjs115
+SRCNAME=firefox
+VERSION=$(basename $(ls $SRCNAME-*.tar.?z | cut -d - -f 2 | rev | cut -f 3- -d . | rev) .source)
+BUILD=${BUILD:-1}
+TAG=${TAG:-_csb}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i686 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
+  exit 0
+fi
+
+wget -c https://ftp.mozilla.org/pub/firefox/releases/115.16.1esr/source/firefox-115.16.1esr.source.tar.xz
+
+# This will collide with a Firefox build that happens simultaneously.
+# Therefore, for use with make_world.sh, REQUIRE_GLOBAL_LOCK.
+
+NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}
+
+TMP=${TMP:-/tmp/csb}
+PKG=$TMP/package-$PKGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=pentium4 -mtune=generic"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+rm -rf $PKG
+mkdir -p $TMP $PKG
+cd $TMP
+rm -rf $SRCNAME-$VERSION ; rm -rf $SRCNAME-$(echo $VERSION | cut -f 1 -d e)
+# Unpack this in a subdirectory to prevent changing permissions on /tmp:
+rm -rf firefox-unpack
+mkdir firefox-unpack
+cd firefox-unpack
+echo "Extracting $CWD/$SRCNAME-$VERSION.source.tar.?z..."
+tar xf $CWD/$SRCNAME-$VERSION.source.tar.?z || exit 1
+mv * ..
+cd ..
+rm -rf firefox-unpack
+cd $SRCNAME-$(echo $VERSION | cut -f 1 -d e) || cd $SRCNAME-$VERSION || exit 1
+chown -R root:root .
+find . \
+ \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+ -exec chmod 755 {} \+ -o \
+ \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+ -exec chmod 644 {} \+
+
+# We need to use the incredibly ancient autoconf-2.13 for this  :/
+( cd $CWD/autoconf ; ./autoconf.build )
+PATH=$TMP/autoconf-tmp/usr/bin:$PATH
+
+# Patches from Fedora:
+zcat $CWD/patches/fix-soname.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/copy-headers.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/icu_sources_data.py-Decouple-from-Mozilla-build-system.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/icu_sources_data-Write-command-output-to-our-stderr.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/emitter.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/init_patch.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/0001-Skip-failing-tests-on-ppc64-and-s390x.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/remove-sloppy-m4-detection-from-bundled-autoconf.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/spidermonkey_checks_disable.patch.gz | patch -p1 --verbose || exit 1
+zcat $CWD/patches/tests-increase-timeout.patch.gz | patch -p1 --verbose || exit 1
+
+# Remove bundled zlib directory and use system version:
+rm -rf modules/zlib
+
+cd js/src
+
+# We need to do this because patches above touch configure.in:
+autoconf-2.13
+
+CFLAGS+="$SLKCFLAGS -fno-delete-null-pointer-checks -fno-strict-aliasing -fno-tree-vrp " \
+CXXFLAGS+="$SLKCFLAGS -fno-delete-null-pointer-checks -fno-strict-aliasing -fno-tree-vrp " \
+./configure \
+  --prefix=/usr \
+  --libdir=/usr/lib${LIBDIRSUFFIX} \
+  --sysconfdir=/etc \
+  --localstatedir=/var \
+  --mandir=/usr/man \
+  --with-system-icu \
+  --with-system-zlib \
+  --disable-tests \
+  --disable-strip \
+  --with-intl-api \
+  --enable-readline \
+  --enable-shared-js \
+  --enable-optimize \
+  --disable-debug \
+  --enable-pie \
+  --disable-jemalloc \
+  --build=$ARCH-slackware-linux \
+
+make $NUMJOBS || make || exit 1
+make install DESTDIR=$PKG || exit 1
+
+# No need for the huge static library:
+rm -f $PKG/usr/lib${LIBDIRSUFFIX}/libjs_static.*
+
+# Don't ship -config:
+rm -f $PKG/usr/bin/js*-config
+
+# Rename shared library to have a proper soname:
+SHORTVER=$(echo $PKGNAM | cut -b 6-)
+if [ ! -r $PKG/usr/lib${LIBDIRSUFFIX}/libmozjs-${SHORTVER}.so ]; then
+  echo "FATAL: trying to rename library but $PKG/usr/lib${LIBDIRSUFFIX}/libmozjs-${SHORTVER}.so is not found."
+  exit 1
+fi
+mv $PKG/usr/lib${LIBDIRSUFFIX}/libmozjs-${SHORTVER}.so $PKG/usr/lib${LIBDIRSUFFIX}/libmozjs-${SHORTVER}.so.0.0.0
+( cd $PKG/usr/lib${LIBDIRSUFFIX}
+  ln -sf libmozjs-${SHORTVER}.so.0.0.0 libmozjs-${SHORTVER}.so.0
+  ln -sf libmozjs-${SHORTVER}.so.0 libmozjs-${SHORTVER}.so
+)
+
+mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
+cp ../../README.txt README.html $PKG/usr/doc/$PKGNAM-$VERSION
+
+# If there's a ChangeLog, installing at least part of the recent history
+# is useful, but don't let it get totally out of control:
+if [ -r ChangeLog ]; then
+  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
+  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
+  touch -r ChangeLog $DOCSDIR/ChangeLog
+fi
+
+find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}
diff --git a/mozjs115/slack-desc b/mozjs115/slack-desc
new file mode 100644
index 0000000..155713c
--- /dev/null
+++ b/mozjs115/slack-desc
@@ -0,0 +1,20 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description. Line
+# up the first '|' above the ':' following the base package name, and the '|'
+# on the right side marks the last column you can put a character in. You must
+# make exactly 11 lines for the formatting to be correct. It's also
+# customary to leave one space after the ':'.
+
+        |-----handy-ruler------------------------------------------------------|
+mozjs115: mozjs115 (Mozilla's JavaScript Engine)
+mozjs115:
+mozjs115: SpiderMonkey is Mozilla's JavaScript engine written in C/C++. It is
+mozjs115: used in various Mozilla products (including Firefox) and is available
+mozjs115: under MPL/GPL/LGPL tri-license.
+mozjs115:
+mozjs115: Homepage:
+mozjs115: https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey
+mozjs115:
+mozjs115:
+mozjs115:
+mozjs115: