Problem seems to be solved on firefox using version 3.6.4+build7 from ubuntu-mozilla-security PPA.
Option "dom.ipc.plugins.enabled=true" in about:config must be activated.
Problem seems to be solved on firefox using version 3.6.4+build7 from ubuntu- mozilla- security PPA.
Option "dom.ipc. plugins. enabled= true" in about:config must be activated.