Make the Firefox used by IJ the Se Firefox driver.

I don't have wires installed, and ctl-shift-f10 should work
as expected. I think perhaps it might be wise to sniff for
the wires binary and Do The Right Thing.

Author: shs96c

java/client/test/org/openqa/selenium/testing/drivers/SynthesizedFirefoxDriver.java

@@ -19,11 +19,9 @@
 
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-
 import static org.openqa.selenium.testing.DevMode.isInDevMode;
 import static org.openqa.selenium.testing.InProject.locate;
 
-import com.google.common.base.Throwables;
 import com.google.common.io.Files;
 
 import org.openqa.selenium.Build;
@@ -61,6 +59,11 @@ private static Capabilities tweakCapabilities(Capabilities desiredCaps) {
       return null;
     }
     DesiredCapabilities tweaked = new DesiredCapabilities(desiredCaps);
+
+    if (!Boolean.TRUE.equals(tweaked.getCapability(MARIONETTE))) {
+      tweaked.setCapability(MARIONETTE, false);
+    }
+
     if (tweaked.getCapability(PROFILE) == null) {
       tweaked.setCapability(PROFILE, createTemporaryProfile());
     } else {