I see that it was somehow possible running moonlight on Firefox with version earlier than 3.5.6. Me too, I was able to operate moonlight 1.0 (but not 2.0 or 2.1) on Firefox 3.5.8.
But now with Firefox 3.6 I am not able to add any of the moonlight versions. In the best case it always says that it will be installed after rebooting firefox, but after rebooting it still says the same ...
I am using Ubuntu 9.10
Thanks in advance.