There are other things you should know about making your code compatible on all of the supported Mozilla platforms. You can read about them here: http://www.mozilla.org/hacking/portable-cpp.html.

We now need to write a bit of code to get our component registered. Components reside in modules, and those modules are defined in shared library files (i.e., DLLs or DSOs) that typically sit in the components directory of an XPCOM application.

* Static libraries for your modules in dist/lib/ (in case other modules want to link statically instead of using XPCOM).

* XPI file in dist/xpi-stage/firstxpcom.xpi.

== Testinig FirstXpcom ==