See PSM bug 169300. The real problem is probably within NSS. Please read bug 169300 for all the details.
Argh. I should have said: bug 163900 Please see bug 163900 for the problem description.
In particular, see Bob's comments in http://bugzilla.mozilla.org/show_bug.cgi?id=163900#c4
If I understand correctly, you said this is WORKSFORME.
I didn't realize that this problem is already fixed in NSS 3.6 (see bug 163900 comment 10 and bug 163900 comment 13). Sorry. I am resolving this bug invalid.