Greasy Fork is available in English.
Game of Thrones Ascent Extender
That can't be the problem. The script currently runs only on Firefox with Greasemonkey installed. My version is 32.0.1, I've also tested it on 32 and 30.
Cannot get this script to run at all - does not give "extender" box icon - or anything
You won't be able to use the extender if you're playing from facebook. Instead log in from http://gota.disruptorbeam.com/ or http://gota-www.disruptorbeam.com/ . Aside from that, you could post a console log (in-game right click somewhere -> Inspect element -> in the Console tab filter output by EXTENDER) for me to be able to debug the problem.
Firefox 32.0
This Script would not run on Fire Fox