Note: For those wanting to use PyXPCOM within Firefox and/or XULRunner, the PythonExt extension provides prebuilt PyXPCOM bindings for Firefox/XULRunner. Installing Python PyXPCOM Requirements PyXPCOM requires Python 2.3 or later (Python 2.3 and 2.4 have both been recently tested). PyXPCOM requires access to a shared Python library. Linux For Linux users, the build script should check if you have