How to write a C++ FireFox 3 plugin (not extension) on Windows?

Could someone write-up a step by step guide to developing a C++ based plugin for FireFox on Windows?

The links and examples on http://www.mozilla.org/projects/plugins/ are all old and inaccurate - the "NEW" link was added to the page in 2004.

The example could be anything, but I was thinking a plugin that lets JavaScript set the name and then displays "Hello {Name}". To show 2-way communication, it could have a property that returns the full salutation.

Though not as important, it would be nice if the plugin would work in Chrome too.