Daedalum said:
I haven't confirmed whether extensions are automaticly available to players connecting to the GM or if they too must install the extension. Any FG people able to answer that one for me?
There is no need to put this extension on the player's FG install. When the player's connect to the campaign, they download all extensions enabled for that FG campaign (even ruleset data if they don't have the ruleset installed locally) and the downloaded data is stored in a cache directory locally.