diff --git a/grub/grub.cfg b/grub/grub.cfg
index 4ca1f55..38c182e 100644
--- a/grub/grub.cfg
+++ b/grub/grub.cfg
@@ -11,7 +11,7 @@ set menu_color_normal=white/black
 set menu_color_highlight=black/light-gray
 set timeout=0
 
-menuentry "Demarrer ou installer Linux Mint 20.1 MATE 64-bit LIS67" --class linuxmint {
+menuentry "Demarrer ou installer Linux Mint LIS67" --class linuxmint {
 	set gfxpayload=keep
 	linux	/casper/vmlinuz  file=/cdrom/preseed/linuxmint.seed boot=casper iso-scan/filename=${iso_path} quiet splash --
 	initrd	/casper/initrd.lz
diff --git a/prepare.sh b/prepare.sh
index 68eccea..43dfb59 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -47,7 +47,7 @@ echo "==== Copy Firefox settings ===="
 sudo cp "$SPATH/firefox/distribution.ini" "$WORKDIR/custom/usr/lib/firefox/distribution/distribution.ini"
 sudo cp "$SPATH/firefox/distribution.ini" "$WORKDIR/custom/usr/share/ubuntu-system-adjustments/firefox/distribution.ini"
 
-sudo cp "$SPATH/firefox/vendor-firefox.js" "$WORKDIR/custom/usr/lib/firefox/browser/defaults/preferences/vendor-firefox.js"
+# sudo cp "$SPATH/firefox/vendor-firefox.js" "$WORKDIR/custom/usr/lib/firefox/browser/defaults/preferences/vendor-firefox.js"
 sudo cp "$SPATH/firefox/vendor-firefox.js" "$WORKDIR/custom/usr/share/ubuntu-system-adjustments/firefox/firefox.js"
 
 echo "==== Disable Yahoo, enable Startpage on Firefox ===="
diff --git a/tasks.sh b/tasks.sh
index 67ce59b..80ca2a0 100644
--- a/tasks.sh
+++ b/tasks.sh
@@ -67,10 +67,23 @@ sudo add-apt-repository -y ppa:phoerious/keepassxc
 sudo apt-get update
 sudo apt-get install -y keepassxc
 
-
 # clean - do not touch
 rm -rf /tmp/*
-rm -f /etc/hosts /etc/resolv.conf
+
+# fix hosts for live cd
+cat <<EOF > /etc/hosts
+127.0.0.1	localhost.localdomain	localhost
+::1		localhost.localdomain	localhost
+EOF
+
+# fix resolv.conf for live cd
+cat <<EOF > /etc/resolv.conf
+nameserver 127.0.0.53
+EOF
+
+# fix firefox not starting correctly after modifications
+sudo apt install --reinstall firefox
+
 umount /proc/
 umount /sys/
 umount /dev/pts