before upload thunderbird-libre

$ librerelease
Permission denied (publickey).
==> WARNING: Empty SIGEXT var, using default .sig
==> WARNING: It's better to use gpg-agent to sign packages in batches
  -> Signing /home/andre/packages/staging/libre/thunderbird-libre-10.0-2-x86_64.pkg.tar.xz...

You need a passphrase to unlock the secret key for
user: "André Silva <andre.paulista@adinet.com.uy>"
2048-bit RSA key, ID 98638719, created 2012-02-07

==> Uploading packages...
Permission denied (publickey).