Abre o browser, mas não carrega a página. Problema com geckodriver. | Selenium: Sua webapp testada de ponta a ponta em java

Olá. Rodei o TesteAutomatizado.java e ele respondeu o seguinte:

Exception in thread "main" java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.gecko.driver system property; for more information, see https://github.com/mozilla/geckodriver. The latest version can be downloaded from https://github.com/mozilla/geckodriver/releases

A seguir incluí o geckodriver e meu TesteAutomatizado.java ficou assim:

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;

public class TesteAutomatizado {
    public static void main(String[] args) {
        System.setProperty("webdriver.gecko.driver", "C:\\Desenvolvimento\\geckodriver\\geckodriver.exe");
        WebDriver driver = new FirefoxDriver();
        driver.get("http://www.google.com.br/");
        WebElement campoDeTexto = driver.findElement(By.name("q"));
        campoDeTexto.sendKeys("Caelum");        
        campoDeTexto.submit();
    }
}

Rodei novamente. O script abriu o browser, mas não carregou a página.

1599659421292    geckodriver    INFO    Listening on 127.0.0.1:13748
1599659422478    mozrunner::runner    INFO    Running command: "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe" "--marionette" "-foreground" "-no-remote" "-profile" "C:\\Users\\xxxxxxx\\AppData\\Local\\Temp\\rust_mozprofile64EpdY"
1599659425629    addons.webextension.<unknown>    WARN    Loading extension 'null': Reading manifest: Error processing background.persistent: Event pages are not currently supported. This will run as a persistent background page.
1599659425637    addons.webextension.<unknown>    WARN    Loading extension 'null': Reading manifest: Error processing version_name: An unexpected property was found in the WebExtension manifest.
1599659427890    addons.webextension.extension@xxxx.com.br    WARN    Loading extension 'extension@xxxx.com.br': Reading manifest: Error processing background.persistent: Event pages are not currently supported. This will run as a persistent background page.
1599659427896    addons.webextension.extension@xxxx.com.br    WARN    Loading extension 'extension@xxxx.com.br': Reading manifest: Error processing version_name: An unexpected property was found in the WebExtension manifest.
1599659427921    addons.webextension.extension@xxxx.com.br    WARN    Please specify whether you want browser_style or not in your browser_action options.
JavaScript warning: moz-extension://22621e7e-f3a7-4820-9091-9f94100daef4/background.js, line 1: unreachable code after return statement
JavaScript warning: moz-extension://22621e7e-f3a7-4820-9091-9f94100daef4/background.js, line 1: unreachable code after return statement
JavaScript warning: moz-extension://22621e7e-f3a7-4820-9091-9f94100daef4/background.js, line 1: unreachable code after return statement
JavaScript warning: moz-extension://22621e7e-f3a7-4820-9091-9f94100daef4/background_popup.js, line 1: unreachable code after return statement
JavaScript warning: moz-extension://22621e7e-f3a7-4820-9091-9f94100daef4/version_utilities.js, line 1: unreachable code after return statement
Exception in thread "main" org.openqa.selenium.TimeoutException: Nenhuma conexão pôde ser feita porque a máquina de destino as recusou ativamente. (os error 10061)
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
System info: host: 'xxxxxxxx', ip: 'xx.x.xx.xx', os.name: 'Windows 8.1', os.arch: 'x86', os.version: '6.3', java.version: '1.8.0_31'
Driver info: driver.version: FirefoxDriver
remote stacktrace: 
. . .

OBS.: Os 'xxx' são informações internas da empresa.