very interesting!
At least to me.
I just built another PC.
So I log into facebook in Firefox
I'm able to play the game GL --
however up above the graphic Galaxy Legion it says "Flash 8 or above is not installed. Get Flash!"
So while GL isn't using Flash apparently Facebook is!
This explains to me the terrible experience of GL in the iOS environment.
Maybe Dan could comment (or anyone who develops apps for Facebook).

Flash is still used in both FB and GL for sound. In our case, music. FB uses flash for sound effects. Note, however, that it is not a requirement for play, just for enhancement.

speaking of music, there are supposed to be 4 songs that play on their own right?
Any chance of a fix so that they play on their own for browsers like chrome because right now it's only the first one and it doesn't play on it's own.