So far, all xpcom examples I saw are Firefox addons. You write some C++ code, build, and register it. This resembles Microsoft COM in-process server, but instead of Windows registry the component information is stored in Firefox profile.
Does Firefox have out-of-the box ability to control it from another process using same API? Somthing like COM's local server application
When you start a second firefox instance, it communicates with the existing firefox process and tells it to open a new window, then dies. I suspect it uses some remote form of xpcom.
