> I'm using Fedora 9 at home and have yet to encounter this behavior. What does it take to
The issue is that Firefox will perform large numbers of fsync system calls on files in
~/.mozilla, and fsync is implemented as a global sync on journaled filesystems.
One way to reproduce the slowdown is to put ~/.mozilla on an ext3 filesystem which has heavy
unrelated write traffic. Another is to put it on a busy NFS filesystem (having home on NFS is
rather common in academic settings).