>Looks like Michel's change the preview so it's no longer a popup (nice improvement, Michel). Anyway it's OK using Firefox 0.9.1, but with the change it probably would have been okay with 0.9 too.

Yes, it's practically impossible to run a good site using new windows now with all those tools that are intercepting their openings. So, we are working hard to try to remove as much as we can with those.