This bug sound like the same as mine, find the complete bug report attached. Firefox crashed while opening a SimpleViewer flash photo gallery in a popu window.
** Attachment added: "complete crash report" http://librarian.launchpad.net/4890736/_usr_lib_firefox_firefox-bin.1000.crash -- Flash plugin problem with ARGB visuals causes crash https://launchpad.net/bugs/14911 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs