An old trick, but I'd thought I'd write it down anyway... You can configure Firefox to automatically send NTLM credentials without prompting for certain web sites by setting the about:config property network.automatic-ntlm-auth.trusted-uris to a comma-separated list of host names.
... until the collector arrives ...
This "blog" is really just a scratchpad of mine. There is not much of general interest here. Most of the content is scribbled down "live" as I discover things I want to remember. I rarely go back to correct mistakes in older entries. You have been warned :)