This minor (but visible) release pretties up graphs of collected data. For details, see the blog post at NarraFirma.com.
To use the WordPress version of NarraFirma, first download the zip file (narrafirma-wordpress-plugin-v1.6.11.zip) from the link you see on this page. Then upload the zip file into the plugins section of a running WordPress installation. Caution! Don't mix up the WordPress zip file (narrafirma-wordpress-plugin-v1.6.11.zip) with the source code file (narrafirma.zip).
For more installation instructions, go to https://narrafirma.com/home/setting-up-narrafirma.