Firefox Flash Plugin bug?

Hi everyone,
I have multiple Flex Applications (wrapped as portlets in
Liferay) working on the same page at the same time in separate
flash players, of course.
When I access the page by Mosilla Firefox browser, all page
portlets get reloaded after the last one is initialized.
And the worst - each of them gets initialized again - it
means that all data gets loaded again. This is proved by log
records: in case of Firefox each portlet loads data twice, in case
of using IE - once.
Have you ever faced the same problem? Is it a Firefox Flash
plugin bug or what?
Thanks in advance.

Updates:
I've opened a bug with Adobe regarding this issue:
http://bugs.adobe.com/jira/browse/FP-4362
Also, the Cancel operation on a FileReference causes the same issue to happen as does loading.  I really think it's an operating system focus issue.
UPDATE:
Looks like this has already been tracked and is scheduled to be fixed:
https://bugs.adobe.com/jira/browse/FP-2785

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