yes, replacing has helped. thank you.
now i see this:

Feb 4 15:26:23 linux2009 kernel: [ 617.777856] type=1503 audit(1233750383.067:156): operation="inode_permission" requested_mask="::x" denied_mask="::x" fsuid=1000 name="/sbin/killall5" pid=7602 profile="/usr/lib/firefox-3.0.5/"

should i allow it? how does it use it?

and i want to say about a feature of apparmor: its permissions are other way than linux's. when new user is added and firefox first started by it, it requested w permission for .mozilla in home directory. i added it and it works. w permission for home directory is not needed.