Disable javascript's domain restrictions in FF 7.0
问题 I am developing a small html + JS app for my own use and being ability to access IFrame's content or opened windows' contect with Javascript would greatly improve my productivity. Is it possible to disable the cross domain restrictions imposed by Firefox 7.0, so that I will be able to modify contents of what is displayed in an iframe? 回答1: I think I remember a similar issue a while ago in FF. This is worth a try: There's a file in your user profile called prefs.js. On my machine its located: