Open an xterm and type in killall browserd That should kill all running flash sessions. I do not suggest running killall -9 browserd or killall -kill browserd on my N900 the -9 switch caused the phone to reboot. There are instances of browserd that run as part of Maemo. A more precise method is to open a X-terminal then type in top the applications using the most cpu will be at the top of the list. Find the PID for the offending program which is in the left column of the list. Then press q to exit top and run kill PID If that does not work then run kill -9 PID