diff --git a/Makefile.defs b/Makefile.defs
index d86b8b0..42aaec6 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -621,6 +621,7 @@ ocaml[Simplif] = ocaml-runtime
 ocaml[Simplify_boxed_integer_ops] = ocaml-runtime
 ocaml[Simplify_common] = ocaml-runtime
 ocaml[Simplify_primitives] = ocaml-runtime
+ocaml[Spacetime_profiling] = ocaml-runtime
 ocaml[Spill] = ocaml-runtime
 ocaml[Split] = ocaml-runtime
 ocaml[Static_exception] = ocaml-runtime
@@ -714,6 +715,8 @@ ocaml[Variable] = ocaml-runtime
 ocaml[Warnings] = ocaml-runtime
 ocaml[X86_dsl] = ocaml-runtime
 ocaml[X86_gas] = ocaml-runtime
+ocaml[X86_masm] = ocaml-runtime
+ocaml[X86_proc] = ocaml-runtime
 
 # perl
 perl[B] = perl
diff --git a/makedist.inc.sh b/makedist.inc.sh
index db97e59..f2965e8 100644
--- a/makedist.inc.sh
+++ b/makedist.inc.sh
@@ -10,10 +10,10 @@
 #create_livecd
 initialize_root_dir
 create_rpm_database
-create_devices
+#create_devices
 
 echo "Installing preparation packages..."
-install_rpms "filesystem gzip texinfo ldconfig bash libreadline glibc libncurses setup coreutils chkconfig \
+install_rpms "filesystem gzip texinfo ldconfig chkconfig bash libreadline glibc libncurses setup coreutils \
 libacl libcap libaudit libselinux libsepol libpcre libcap-ng libattr libstdc++6 libpam" "--nodeps --noorder --noscripts"
 # pam initscripts
 chroot $MOUNTDIR /usr/sbin/update-alternatives --install /bin/sh sh /bin/bash 20
@@ -211,7 +211,7 @@ else
       cp -a --no-preserve=ownership $TARGETDIR/platforms/$PLATFORM/root-$LANGUAGE/* $MOUNTDIR/
 fi
 
-# enable additional smart repositories
+# enable additional repositories
 if [ "$SMART_CHANNELS_ENABLE" != "" ]; then
    for r in $SMART_CHANNELS_ENABLE; do
       chroot $MOUNTDIR dnf config-manager --enable $r
@@ -226,6 +226,10 @@ if [ ! "$KERNEL_IGNORE" ]; then
    done
 fi
 
+# perform a system upgrade
+#dnf update -y
+#dnf clean
+
 # rpm database
 post_install_rpms
 clean_rpm_database
diff --git a/platforms/livecd-light-root/Makefile b/platforms/livecd-light-root/Makefile
index 6f91f02..62de84a 100644
--- a/platforms/livecd-light-root/Makefile
+++ b/platforms/livecd-light-root/Makefile
@@ -7,7 +7,7 @@ $(MAKEDIST_TARGET)-livecd-light: openssh-server usbutils wireless_tools parted i
              network-manager-applet Mesa-tools \
              x11vnc xorg-server xorg-drv-video-fbdev xorg-drv-input-evdev xorg-drv-input-keyboard \
              xorg-drv-input-mouse xorg-drv-input-void \
-             rpm dnf chromium desktop-base-openmamba
+             rpm dnf firefox desktop-base-openmamba
 
 $(MAKEDIST_TARGET)-livecd-light-libreoffice: libreoffice-calc libreoffice-writer libreoffice-impress
 
@@ -27,8 +27,8 @@ $(MAKEDIST_TARGET)-livecd-light-root: \
                   $(MAKEDIST_TARGET)-livecd-light
 
 # Localization targets
-$(MAKEDIST_TARGET)-livecd-light-root-de: langpacks-de
+$(MAKEDIST_TARGET)-livecd-light-root-de: langpacks-de firefox-langpack-de
 $(MAKEDIST_TARGET)-livecd-light-root-en: langpacks-en_GB
-$(MAKEDIST_TARGET)-livecd-light-root-es: langpacks-es
-$(MAKEDIST_TARGET)-livecd-light-root-fr: langpacks-fr
-$(MAKEDIST_TARGET)-livecd-light-root-it: langpacks-it
+$(MAKEDIST_TARGET)-livecd-light-root-es: langpacks-es firefox-langpack-es
+$(MAKEDIST_TARGET)-livecd-light-root-fr: langpacks-fr firefox-langpack-fr
+$(MAKEDIST_TARGET)-livecd-light-root-it: langpacks-it firefox-langpack-it
diff --git a/platforms/livecd-root/Makefile b/platforms/livecd-root/Makefile
index 5aedfce..2e26e29 100644
--- a/platforms/livecd-root/Makefile
+++ b/platforms/livecd-root/Makefile
@@ -11,7 +11,7 @@ $(MAKEDIST_TARGET)-livecd-root: \
                   ttf-freefont liberation-fonts-ttf \
                   partitionmanager ntfs-3g libdvdcss \
                   NetworkManager ModemManager \
-                  chromium vixie-cron logrotate \
+                  firefox vixie-cron logrotate \
                   livecd-tools \
                   Mesa-tools driconf parted testdisk \
                   samba-server sddm \
@@ -19,8 +19,8 @@ $(MAKEDIST_TARGET)-livecd-root: \
                   $(MAKEDIST_TARGET)-livecd-kde
 
 # Localization targets
-$(MAKEDIST_TARGET)-livecd-root-de: langpacks-de
+$(MAKEDIST_TARGET)-livecd-root-de: langpacks-de firefox-langpack-de
 $(MAKEDIST_TARGET)-livecd-root-en: langpacks-en_GB
-$(MAKEDIST_TARGET)-livecd-root-es: langpacks-es
-$(MAKEDIST_TARGET)-livecd-root-fr: langpacks-fr
-$(MAKEDIST_TARGET)-livecd-root-it: langpacks-it
+$(MAKEDIST_TARGET)-livecd-root-es: langpacks-es firefox-langpack-es
+$(MAKEDIST_TARGET)-livecd-root-fr: langpacks-fr firefox-langpack-fr
+$(MAKEDIST_TARGET)-livecd-root-it: langpacks-it firefox-langpack-it
diff --git a/platforms/livedvd-root/Makefile b/platforms/livedvd-root/Makefile
index b9c4a92..a667d1f 100644
--- a/platforms/livedvd-root/Makefile
+++ b/platforms/livedvd-root/Makefile
@@ -10,17 +10,17 @@ $(MAKEDIST_TARGET)-livedvd-root: \
                   xorg-drv-input-synaptics xorg-apps-extra xterm \
                   ttf-freefont liberation-fonts-ttf \
                   partitionmanager ntfs-3g libdvdcss \
-                  chromium kpartsplugin vixie-cron logrotate \
+                  firefox kpartsplugin vixie-cron logrotate \
                   macbook-tools livecd-tools gdb \
                   Mesa-tools driconf parted testdisk samba-server \
                   mambatray sddm \
                   $(MAKEDIST_TARGET)-livedvd-kde testdisk photorec
 # Localization targets
-$(MAKEDIST_TARGET)-livedvd-root-de: langpacks-de
+$(MAKEDIST_TARGET)-livedvd-root-de: langpacks-de firefox-langpack-de
 $(MAKEDIST_TARGET)-livedvd-root-en: langpacks-en_GB
-$(MAKEDIST_TARGET)-livedvd-root-es: langpacks-es
-$(MAKEDIST_TARGET)-livedvd-root-fr: langpacks-fr
-$(MAKEDIST_TARGET)-livedvd-root-it: langpacks-it
+$(MAKEDIST_TARGET)-livedvd-root-es: langpacks-es firefox-langpack-es
+$(MAKEDIST_TARGET)-livedvd-root-fr: langpacks-fr firefox-langpack-fr
+$(MAKEDIST_TARGET)-livedvd-root-it: langpacks-it firefox-langpack-it
 # FIXME: add kdepim
 syslog-ng:
 	@echo
diff --git a/platforms/rootfs-light/Makefile b/platforms/rootfs-light/Makefile
index 5b0c338..f992ab2 100644
--- a/platforms/rootfs-light/Makefile
+++ b/platforms/rootfs-light/Makefile
@@ -24,8 +24,8 @@ $(MAKEDIST_TARGET)-$(PLATFORM): $(MAKEDIST_TARGET)-devel \
              postplug-xorg postplug-sound partitionmanager tar net-tools mambatray qtvkbd
 
 # Localization targets
-$(MAKEDIST_TARGET)-$(PLATFORM)-de: langpacks-de
+$(MAKEDIST_TARGET)-$(PLATFORM)-de: langpacks-de firefox-langpacks-de
 $(MAKEDIST_TARGET)-$(PLATFORM)-en: langpacks-en_GB
-$(MAKEDIST_TARGET)-$(PLATFORM)-es: langpacks-es
-$(MAKEDIST_TARGET)-$(PLATFORM)-fr: langpacks-fr
-$(MAKEDIST_TARGET)-$(PLATFORM)-it: langpacks-it
+$(MAKEDIST_TARGET)-$(PLATFORM)-es: langpacks-es firefox-langpacks-es
+$(MAKEDIST_TARGET)-$(PLATFORM)-fr: langpacks-fr firefox-langpacks-fr
+$(MAKEDIST_TARGET)-$(PLATFORM)-it: langpacks-it firefox-langpacks-it