This script moves webkitgtk+ browser cache directories to /tmp/cache/, it should be run on user login.

webkit-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 webkitgtk+ browser cache directories to /tmp/cache/, it should be run on user login.

# define our directories
EPIPH_CACHE="$HOME/.cache/epiphany-browser"
EPIPH_TMP_CACHE="/tmp/cache/epiphany-browser"
MIDO_CACHE="$HOME/.cache/midori"
MIDO_TMP_CACHE="/tmp/cache/midori"
EPIPHANY="`which "epiphany"`"
MIDORI="`which "midori"`"

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

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

# functions loaded, running them!

EP
MD