> A buggy extension is also possible... see:
> http://forums.mozillazine.org/viewtopic.php?t=354828#2051115
Known Leaky Extensions
The following extensions are known to have memory leaks:
Fixed
Adblock 0.5.3.042
<boing!>
that and hacking the diff to 1.5.1 seems to have staunched the
flow.
thank you and all the others who gave me clue along the way.
randy