removed tempfile usage

salt/states/files/install_firefox_addon

@@ -1,16 +1,14 @@
 #!/bin/bash
 set -aeo pipefail
-filename="$1"
-url="$2"
-tmpfile=$(mktemp /tmp/install_firefox_addon.XXXXXX.xpi)
 
 {% for name, args in pillar['firefox']['addons'].items() %}
 if [[ $(grep -oP '(?<=\},\"name\":\"){{ name }}' {{ salt['user.info']( pillar['username'] ).home }}/.mozilla/firefox/*.default*/addons.json) ]]; then
     printf "{{ name }} is already installed\n"
 else
     printf "installing {{ name }}\n"
-    curl -sLo "$tmpfile" {{ args['url'] }}
-    firefox "$tmpfile"
+    curl -sLo /tmp/{{ args['name'] }} {{ args['url'] }}
+    firefox /tmp/{{ args['name'] }}
+    rm /tmp/{{ args['name'] }}
 fi
 {% endfor %}