In FF the columns in a rich:scrollableDataTable in a modalpanel will not resize. This is a known issue I've seen in JIRA. However, I noticed that when a scrollableDataTable is in a tab in a modalpanel, when changing tab the resizing does work very well.
My question: Can something be concluded from this? I mean: is there a certain ontabchange .js method that is called that re-evaluates the resizing script, or something of the kind. In that case a workaround can be found.