Using latest portable FF4 and latest flash plugin, While playing flash videos the "plugin container" module of FF starts using up 100% cpu and whole computer is bogged down. even after closeing the page with the flash video the plugin container module sometimes stays stuck at 100% cpu. If I close it, the flash plugin crashes and I would have to restart FF to get workin again. This has happened with past releases of FF and flash also, so updating is not working for me. Have sent crash reports many time now..