I was wrong, after restarting firefox crashed always again. When I run firefox with -g parameter, it doesn't crash, and afterthat I can run firefox normally without it crashes.
I have feisty with updated packages -- firefox crash with flash when libnss3-0d and libnspr4-0d are missing https://launchpad.net/bugs/94277 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
