I have the same problem too, but in my case it seems that firefox doesn't close properly if (but not only if) during my last browsing I have visited the page: http://www3.uninsubria.it/uninsubria/facolta/scico.html
Maybe it has something to do with the embedded java frame. -- Firefox doesn't always shut down properly https://bugs.launchpad.net/bugs/252151 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
