Chat window is not showing at all. Where chat window should appear there is just black area. Pressing right mouse button I can see standard flash menu with version info but chat window is totally black.
I have tried this in 3 different systems, windows 7 all with firefox 65. But all showed the same issue. When I have downgraded FF back to v64, it worked fine.
This issue could be related to FF changes described at : https://blog.mozilla.org/futurereleases/2018/08/30/changing-our-approach-to-anti-tracking/
I know that in old FF if I have't enabled 3rd party cookies, xat flash chats would not work.