move firefox cache to /tmp/cache for tmpfs

firefox-tmp-cache.sh

#!/bin/bash
#
# Copyright (c) 2015 Tara Nupsumass
#    This script is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 2 of the License, or
#    (at your option) any later version.
#
#    This script is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#	 			   <http://www.gnu.org/licenses/>
#

# This script moves firefox browser cache directorie(s) to /tmp/cache/, it should be run on user login.

# define our directories
FF_CACHE="$HOME/.cache/mozilla/firefox"
FF_TMP_CACHE="/tmp/cache/mozilla/firefox"
FIREFOX="`which "firefox"`"

function FF
{
# check if exists and is executable
	if [[ -x $FIREFOX ]]; then
		 echo "$FIREFOX found."
# not found, abandoning this function.
    else echo "FIREFOX not installed, skipping."; return
	fi
# check if tmp cache exists, otherwise create it.
	if [ ! -e $FF_TMP_CACHE ]; then
	     echo "$FF_TMP_CACHE not found, creating it"
		 mkdir -p "$FF_TMP_CACHE"
# if tmp cache directory already exists, skip creating it
	else
		 echo "$FF_TMP_CACHE found, not creating it."
	fi
# remove any remaining cache and symlink it
	if [ -d $FF_CACHE ]; then
		 echo "existing $FF_CACHE found, deleting it."
         rm -Rf "$FF_CACHE"
		 echo "symlinking $FF_TMP_CACHE to $FF_CACHE"
         ln -s "$FF_TMP_CACHE" "$FF_CACHE"
	else
		 echo "existing $FF_CACHE not found, good to go! symlinking $FF_TMP_CACHE to $FF_CACHE"
		 ln -s "$FF_TMP_CACHE" "$FF_CACHE"
	fi
}

# function(s) loaded, running them!

FF