freeplane-addon
There are 2 repositories under freeplane-addon topic.
gscatto/freeplane-desktop-actions-addon
This add-on provides a script to open or browse files, directories and URIs using the java.awt.Desktop class: it looks for the associated application registered on the current platform, and launch it to handle the resource.
WetHat/freeplane-addon-newsreader
A simple RSS Newsreader Add-On for the Freeplane Open Source Mind Mapping Application