using symfony/panther headless with geckodriver on windows - windows

Question

Im trying to test my Symfony app with panther im on a Windows computer with only Firefox or Edge as Web Browser I cannot install Chrome. I installed the bundle symfony/panther. I downloaded the geckodriver script from this link:
https://github.com/mozilla/geckodriver/releases/tag/v0.31.0
and put it in my project root dir in a folder named drivers.
namespace App\Tests\Controller;
use Symfony\Component\Panther\Client;
use Symfony\Component\Panther\PantherTestCase;
class AccueilControllerTest extends PantherTestCase
{
public function testAccueilController(){
$client = Client::createFirefoxClient();
$client->request('GET', 'http://localhost:8080/');
$client->takeScreenshot('accueil.png');
sleep(5);
}
}
I have set the env variable PANTHER_NO_HEADLESS=1 in the .env.test file
and when I launch my test I have this error :
There was 1 error:
1) App\Tests\Controller\AccueilControllerTest::testAccueilController
Facebook\WebDriver\Exception\InvalidArgumentException: binary is not a Firefox executable
....\vendor\php-webdriver\webdriver\lib\Exception\WebDriverException.php:99
....\vendor\php-webdriver\webdriver\lib\Remote\HttpCommandExecutor.php:372
....\vendor\php-webdriver\webdriver\lib\Remote\RemoteWebDriver.php:131
....\vendor\symfony\panther\src\ProcessManager\FirefoxManager.php:70
....\vendor\symfony\panther\src\Client.php:120
....\vendor\symfony\panther\src\Client.php:524
....\vendor\symfony\panther\src\Client.php:276
....\tests\App\Tests\Controller\AccueilControllerTest.php:19
ERRORS!
Tests: 1, Assertions: 0, Errors: 1.