signed script for mozilla

[Alan Zhu]

Hi Mitch:

I tested "the Signed Script Example" on
"http://www.mozilla.org/projects/security/components/signed-script-example.h
tml" under M18 debug version of mozilla.exe.   It always failed at

  rv = verifier->VerifySignature(sigBuffer, sigLen, manifestBuffer,
manifestLen,
                                 &verifyError, getter_AddRefs(mPrincipal));

function in nsJar.cpp file.   It seems mozilla doesn't find certifacate.
Where we should put all .db files under mozilla?  At NS6, it is under
"userprofile" but mozilla doesn't have that directory.

Thanks.

Alan