it is not hardcoded in the modules - we just load the matching xulrunner for the architecture/os that eclipse returns. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4105777#4105777 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4105777