Exact location of auth.txt file in Linux (Ubuntu)

[jucas_lo]

Hi I'm trying to use Jnext but I can't get it to work.

I'm using Firefox under Linux (Ubuntu Hardy), and I tried running the
examples, but they complain about permissions, which I guess is
because the auth.txt file.

I tried ~/.mozilla/plugins/jnext/auth.txt and didn't work, also /usr/
lib/mozilla/plugins/jnext/auth.txt and also /usr/lib/mozilla-firefox/
plugins/jnext/auth.txt

Any help would be greatly appreciated