_applescript-FocusMostRecentWindow -

FocusMostRecentWindow.scpt

tell application "System Events" to tell application process "Firefox"
	tell application "Firefox"
		activate
		tell windows
			set minimized to false
			set visible to true
		end tell
	end tell
end tell

This popen does AXRaise and it does it as System Events

Cu.import('resource://gre/modules/ctypes.jsm');


function doit() {
        _x11 = ctypes.open('libc.dylib');


    var popen = _x11.declare('popen', ctypes.default_abi, ctypes.voidptr_t, // Return int
        ctypes.char.ptr, // Param1 const char *command
        ctypes.char.ptr // Param1 const char *command
    );

    var fread = _x11.declare('fread', ctypes.default_abi, ctypes.size_t, // Return int
        ctypes.voidptr_t,
        ctypes.size_t,
        ctypes.size_t,
        ctypes.voidptr_t
    );

    var pclose = _x11.declare('pclose', ctypes.default_abi, ctypes.int, // Return int
        ctypes.voidptr_t
    );

    ////////////////////////
    ////END DECLARATIONS
    ////////////////////////

    var file = popen('osascript -e \'tell application "System Events" to tell first process whose unix id is 398 \n set frontmost to true \n \n perform action "AXRaise" \n end tell\'', 'r')
  console.log(file.toString())
    pclose(file);


}

console.time('popen');
doit();
console.timeEnd('popen')