How do I execute a page-defined JavaScript function from a Firefox extension?

Question

I\'m creating a Firefox extension for demo purposes. I to call a specific JavaScript function in the document from the extension. I wrote this in my HTML document (not insid

Answer 1

document.wrappedJSObject.funcToBeCalled();

This is not secure and allows a malicious page to elevate its permissions to those of your extension... But, it does do what you asked. Read up on the early greasemonkey vulnerabilities for why this is a bad idea.