We are writing app for facebook. It's a game written in flash and embeded with wmode window. We get problem with Firefox 6, but only on Windows XP. When user invoke some facebook dialog (for example: pay dialog or buying more credits dialog) flash disappears. This same happens when user click on notifications (globe icon in top facebook menu) and hold it for a while (however this is not so important).
After flash disappears it it still in DOM as <object>
.
This is not happen when wallpost dialog is created.
How to fix it?
We can't change wmode, so this way is impossible.
The FB.init documentation: https://developers.facebook.com/docs/reference/javascript/FB.init/#flash gives you some options for doing something better than displaying a white background if your application will not work with wmode="opaque".