Extraction of my .zshrc: Function to start various Firefox versions with a (temporary) profile based on customizable templates.

tmpfx.sh

#
# Starts Firefox with a temporary profile based on a template
#
# Assumes there is Firefox Nightly, DevEdition (Aurora), Beta, ESR and Stable
# installed on your OSX inside /Applications/, but adjustments are made easily.
#
# In my setup, I've got two templates in $PROFILE_ROOT/templates/ called
# "default" and "proxied". "proxied" is a copy of "default" with a local
# proxy set up that I use with mitmproxy.
#
# Usage:
#   tmpfx [-k] [-n test] [-p] [-v stable|esr|beta|deved] -- [other Firefox arguments]
#
# Arguments:
#   -k: if specified, the profile directory will not get deleted
#   -n: uses the profile template specified
#   -p: will use the "proxied" template
#   -v: specifies the Firefox version to use. If unspecified, Nightly will
#       get used. stable, beta and deved are valid names.
#
tmpfx() {
  PROFILE_ROOT=~/Work/.firefox-profiles

  OPTIND=1
  KEEP_PROFILE=0
  PROFILE="default"
  FIREFOX_BINARY="/Applications/FirefoxNightly.app/Contents/MacOS/firefox"

  while getopts "knpv:" opt; do
    case "$opt" in
      k)
        KEEP_PROFILE=1
        ;;
      n)
        PROFILE=$OPTARG
        ;;
      p)
        PROFILE="proxied"
        ;;
      v)
        case "$OPTARG" in
          stable)
            FIREFOX_BINARY="/Applications/Firefox.app/Contents/MacOS/firefox"
            ;;
          beta)
            FIREFOX_BINARY="/Applications/FirefoxBeta.app/Contents/MacOS/firefox"
            ;;
          deved)
            FIREFOX_BINARY="/Applications/FirefoxDeveloperEdition.app/Contents/MacOS/firefox"
            ;;
          esr)
            FIREFOX_BINARY="/Applications/FirefoxESR.app/Contents/MacOS/firefox"
            ;;
          *)
            echo "Unrecognized firefox version: $OPTARG"
            echo "Supported: none (nightly), deved, beta, stable, esr"
            return 1
            ;;
        esac
    esac
  done

  SRC_PROFILE_DIR=$PROFILE_ROOT/templates/$PROFILE
  if [ ! -d "$SRC_PROFILE_DIR" ]; then
    echo "Profile template not found: $PROFILE"
    return 1
  fi

  shift $((OPTIND-1))
  [ "$1" = "--" ] && shift

  TMP_PROFILE_DIR=$(mktemp -d $PROFILE_ROOT/$PROFILE-XXXXXX)
  cp -La $SRC_PROFILE_DIR/* $TMP_PROFILE_DIR

  if [ "$KEEP_PROFILE" = 0 ]; then
    function rmTmpProfile {
      rm -rf $TMP_PROFILE_DIR
    }
    trap rmTmpProfile INT EXIT
  fi

  echo "Starting with $TMP_PROFILE_DIR"
  $FIREFOX_BINARY --foreground --profile $TMP_PROFILE_DIR $@
}