Does firefox upgrades need some pre/post install love to close and restart firefox during upgrades

[Michael Wiktowy]

Doesn't the kernel have an inotify system that can efficiently pass
file change events back to an application (or firefox plugin in this
case) without having to poll continuously?

http://en.wikipedia.org/wiki/Inotify

Possibly the same applet that warns of a kernel/system change
requiring a reboot could be broadened in usefulness to give the user a
specific notifier after an update that the rug might have been pulled
out from under their feet for certain applications.

/Mike