sidebar installation problem

Hello, all.

I'm not certain this is the right newsgroup for this query but it's the
closest I could find. Apologies and request for guidance if I'm too far
astray.

I have a xul based application I want to install in the sidebar. It
consists of an app.xul file and an app.js file.

I have tried two approaches but the preferred one does not work.

I would prefer to install it as a URL. When I try that two things don't
work: the popup menu does not display properly (minor) and the
javascript is not found at all (major). The same problems occur if I use
the URL in the main browser window. Is this a security issue and if so
is there a solution for the URL approach?

The second approach was to install it via XPI. This was successful. I
can call the app as a chrome URL in the browser and it works. But I can
not install the chrome URL in the sidebar (illegal). The only way to get
it into the sidebar I have found is to hack it into
/content/communicator/sidebar/local-panels.rdf. This is sooo not a good
idea, imho.

Is there a better way?

< david