Thank you for taking the time to report this bug and help to improve Ubuntu.
It appears that the current version of swfdec-mozilla works correctly in hardy with firefox 3:
$ update-alternatives --list xulrunner-addons-flashplugin /usr/lib/swfdec-mozilla/libswfdecmozilla.so $
and 'firefox about:plugins' shows the module installed as expected.
Marking this bug as 'fix released'.
Thank you for taking the time to report this bug and help to improve Ubuntu.
It appears that the current version of swfdec-mozilla works correctly in hardy with firefox 3:
$ update-alternatives --list xulrunner- addons- flashplugin swfdec- mozilla/ libswfdecmozill a.so
/usr/lib/
$
and 'firefox about:plugins' shows the module installed as expected.
Marking this bug as 'fix released'.