Firefox memory leak

This is why I have to reboot about once a week... leaking memory from Firefox. I go to open a VM, and I'm suddenly having to use some swap.

However, I just upgraded to Ubuntu 9.04, and overall memory usage seems to be down a bit... maybe I can probably go longer between reboots now.

You know, you can just end the firefox processes and all the memory they allocated will be released, you don't have to reboot the whole computer.