start Firefox with disposable profiles on osx

start-ff.sh

#!/bin/sh

# start Firefox with disposable profiles on osx
# usage: start-ff.sh profilename Firefox.app 
#        start-ff.sh profilename Aurora.app 
#        start-ff.sh profilename Nightly.app 

PROFILE_NAME=abcabdab-sync1
if [ ! -z "$1" ]; then 
    PROFILE_NAME=$1
fi

FIREFOX_APP=Firefox.app
if [ ! -z "$2" ]; then 
    FIREFOX_APP=$2
fi

PROFILES_DIR=$HOME/test-profiles
mkdir -p $PROFILES_DIR/$PROFILE_NAME
YYYYMMDD=$(date +%Y%m%d-%H%M)-$(perl -e 'printf("%03d",int(rand()*1000))')

export NSPR_LOG_MODULES=timestamp,cookie:5,nsSocketTransport:5,cache:5,nsHttp:5
export NSPR_LOG_FILE=$PROFILES_DIR/nspr_log.$PROFILE_NAME.$YYYYMMDD
export MY_LOG_FILE=$PROFILES_DIR/test_log.$PROFILE_NAME.$YYYYMMDD
export XRE_PROFILE_PATH=$PROFILES_DIR/$PROFILE_NAME

echo "PROFILE_NAME:     $PROFILE_NAME"
echo "XRE_PROFILE_PATH: $XRE_PROFILE_PATH"
echo "NSPR_LOG_MODULES: $NSPR_LOG_MODULES"
echo "NSPR_LOG_FILE:    $NSPR_LOG_FILE"
echo "MY_LOG_FILE:      $MY_LOG_FILE"
echo "Application:      /Applications/$FIREFOX_APP/Contents/MacOS/firefox-bin"

/Applications/$FIREFOX_APP/Contents/MacOS/firefox-bin 2>&1 | /opt/local/sbin/tai64n | /opt/local/sbin/tai64nlocal > $MY_LOG_FILE &