I _thought_ it was there since rc2 of FF-3, but clearly there are odd
things afoot. You're the second person to report it not there.
I'd suspect that I mistyped it, but I just cut-and-pasted it from my email
to make sure. Maybe you did. What happens if you just write "sync" in the
Filter: box? Nothing matches?
Do you see firefox pausing a lot under disk load? If you just add that
"toolkit.storage.synchronous" value by hand (right-click in the preference
window, do "New" -> "Integer"), and write it in as zero, does it change
behavior?
Linus
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