Except that with multi-threading you give up the OS-provided process level memory management and are back to having to track down all those memory leaks which a

Except that with multi-threading you give up the OS-provided process level memory management and are back to having to track down all those memory leaks which at least Mozilla never can seem to fix satisfactorily. Even though Chrome seems plenty fast to me, I'd gladly give up some speed if I never had to close the browser and restart it because it was taking up 3/4 of available memory.