Unable to call FirefoxDriver constructor

问题:

I am continuously getting unsupportedCommandException when I am running the following code:

System.setProperty("webdriver.firefox.bin","C:\\Program Files\\Mozilla Firefox\\Firefox.exe");     FirefoxProfile firefoxProfile = new FirefoxProfile();      String domain = "extensions.firebug.";     firefoxProfile.setPreference("app.update.enabled", false);     firefoxProfile.addExtension(new File("D:\\\\firebug-1.11.2-fx.xpi"));     firefoxProfile.setPreference(domain + "currentVersion", "1.11.2");     firefoxProfile.setPreference("extensions.firebug.cookies.enableSites", true);     firefoxProfile.setPreference("extensions.firebug.allPagesActivation", "on");      firefoxProfile.setPreference(domain + "framePosition", "bottom");     firefoxProfile.setPreference(domain + "defaultPanelName", "cookies");      WebDriver driver = new FirefoxDriver(firefoxProfile);     driver.get("http://www.google.com/webhp?complete=1&hl=en");     WebElement query = driver.findElement(By.name("q"));

Firefox version: 20.0, firebug 1.11.2.

Error message I am getting is as under:

Exception in thread "main" org.openqa.selenium.UnsupportedCommandException: Bad request  Command duration or timeout: 437 milliseconds Build info: version: '2.32.0', revision: '6c40c18', time: '2013-04-09 17:23:22' System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version: '1.6.0_24' Driver info: org.openqa.selenium.firefox.FirefoxDriver     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)     at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)     at java.lang.reflect.Constructor.newInstance(Unknown Source)     at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:187)     at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)     at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:554)     at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:216)     at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:111)     at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:190)     at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:183)     at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:179)     at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:96)     at com.vinit.tiwari.TestCookieFirefox.main(TestCookieFirefox.