@Tim772 The only way I know is to use the --remote-debugging-port parameter when launching Chrome. You can then use this same port number to communicate with the existing Chrome instance. Here's a simple example -- #include "wd_core.au3" Local $sDesiredCapabilities, $sSession ShellExecute("chrome.exe", "--remote-debugging-port=9222") SetupChrome() _WD_Startup() $sSession = _WD_CreateSession($sDesiredCapabilities) _WD_Navigate($sSessi