firefox/firefox-autoupdate

#!/bin/sh
FIREFOX_VERSION=$1
ARCH=x86_64

if [ -z "$FIREFOX_VERSION" ]; then
    echo "Usage: $0 <version>"
    exit 2
fi

[ -e firefox-$FIREFOX_VERSION-langpacks.tar.bz2 ] && exit 0

rm -rf firefox-$FIREFOX_VERSION
mkdir firefox-$FIREFOX_VERSION
cd firefox-$FIREFOX_VERSION
wget -r -N -l 1 -np -nd -A "*.xpi" https://ftp.mozilla.org/pub/firefox/releases/$FIREFOX_VERSION/linux-$ARCH/xpi/
rm -f robots.txt
tar -cj *.xpi  > ../firefox-$FIREFOX_VERSION-langpacks.tar.bz2
rm -f *.xpi
cd ..
rmdir firefox-$FIREFOX_VERSION