Cookie and Window management in XUL-runner SDK

Hello, developers!

I've been develoing application using XUL-runner SDK (under Windows,
if it matters)
All worked great until a new features have been added:

1. Native mozilla window management using nsIWindowCreator
the application simply crashes at XRE_TermEmbedding. How do I find out
what hasn't been released?

2. The new application requires cookies.
How do I implement this stuff? What should I read?



Thanks in advance