To test any addon that isn't in the stable tree of IPfire you have to make a tiny modification of your pakfire.conf. You need access to a shell on your IPfire. Please change to following:

File /opt/pakfire/etc/pakfire.conf

$version = "2.13";

to

$version = "2.13.1";

After that execute:

pakfire update --force

You are now inside the testing tree. These addons aren't stable and only for testing purposes. Please install this addons only if you know what you are doing…