--- a/testing/web-platform/harness/wptrunner/webdriver_server.py
+++ b/testing/web-platform/harness/wptrunner/webdriver_server.py
@@ -144,29 +144,30 @@ class EdgeDriverServer(WebDriverServer):
             self, logger, binary, host=host, port=port)
 
     def make_command(self):
         return [self.binary,
                 "--port=%s" % str(self.port)]
 
 
 class GeckoDriverServer(WebDriverServer):
-    def __init__(self, logger, marionette_port=2828, binary="wires",
+    def __init__(self, logger, marionette_port=2828, binary="geckodriver",
                  host="127.0.0.1", port=None):
         env = os.environ.copy()
         env["RUST_BACKTRACE"] = "1"
         WebDriverServer.__init__(self, logger, binary, host=host, port=port, env=env)
         self.marionette_port = marionette_port
 
     def make_command(self):
         return [self.binary,
                 "--connect-existing",
                 "--marionette-port", str(self.marionette_port),
                 "--host", self.host,
-                "--port", str(self.port)]
+                "--port", str(self.port),
+                "--log", "info"]
 
 
 class ServoDriverServer(WebDriverServer):
     def __init__(self, logger, binary="servo", binary_args=None, host="127.0.0.1", port=None, render_backend=None):
         env = os.environ.copy()
         env["RUST_BACKTRACE"] = "1"
         WebDriverServer.__init__(self, logger, binary, host=host, port=port, env=env)
         self.binary_args = binary_args