CODEWITHSUNDEEP
javamavenseleniumgeckodriverfirefox-headless
Michela Dennis
Michela Dennis

Reputation: 121

java.net.ConnectException: Failed to connect to localhost/127.0.0.1:xxxx while invoking Firefox browser in Headless mode

I am getting a "java.net.ConnectException: Failed to connect to localhost" error whenever I try to initialize the FirefoxDriver. Any Help?

Code and Stack Trace Below:

Java Code

firefoxBinary = new FirefoxBinary();
firefoxBinary.addCommandLineOptions("--headless");

System.setProperty("webdriver.gecko.driver", (String) pluginConfig.get("geckodriver"));
firefoxOptions = new FirefoxOptions();

firefoxOptions.setBinary(firefoxBinary);
driver = new FirefoxDriver(firefoxOptions);

This line throws the error

driver = new FirefoxDriver(firefoxOptions);

Stack Trace:

java.net.ConnectException: Failed to connect to localhost/127.0.0.1:5054 Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z' System info: host: 'xxxxx-Lenovo-YOGA-3-Pro-1370', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-127-generic', java.version: '1.8.0_171' Driver info: driver.version: FirefoxDriver
org.openqa.selenium.WebDriverException
Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z'
System info: host: 'xxxxxx-Lenovo-YOGA-3-Pro-1370', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-127-generic', java.version: '1.8.0_171'
Driver info: driver.version: FirefoxDriver
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:92)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:543)
    at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:207)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:130)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:125)
    at

Upvotes: 0

Views: 4246

Answers (2)

Michela Dennis
Michela Dennis

Reputation: 121

Resolved it.The problem was that, I was using a corrupted copy of geckodriver and it gave the following error above the stacktrace.

--- exec-maven-plugin:1.2.1:exec (default-cli) @ fetcher-firefox ---
path/to/geckodriver: 2: path/to/geckodriver: Syntax error: newline unexpected
Exception in thread "main" org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/127.0.0.1:15615

Build info: version: '3.12.0', revision: '7c6e0b3', time: '2018-05-08T14:04:26.12Z' System info: host: 'xxxxx-Lenovo-YOGA-3-Pro-1370', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-127-generic', java.version: '1.8.0_171'

Details of the issue can be found here: https://github.com/SeleniumHQ/selenium/issues/6013#issuecomment-396665924

Upvotes: 1

undetected Selenium
undetected Selenium

Reputation: 193298

Not sure about the contents of pluginConfig file. In general to invoke Firefox Browser in Headless Mode programatically through Selenium 3.12.0, GeckoDriver v 0.20.1, Firefox Quantum v60.0.2 and Java you need to pass the argument --headless through an instance of FirefoxOptions and you can use the following solution:

  • Code Block:

    import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;

public class A_Firefox_Headless
{
    public static void main(String[] args) 
    {
        System.setProperty("webdriver.gecko.driver", "/path/to/geckodriver");
        FirefoxOptions options = new FirefoxOptions();
        options.addArguments("--headless");
        WebDriver driver =  new FirefoxDriver(options);
        System.out.println("Mozilla Firefox Headless Browser Initialized");
        driver.get("http://www.google.com");
        System.out.println("Page Title is : "+driver.getTitle());
        driver.quit();
    }
}

  • Console Output:

    1528817592552   geckodriver INFO    geckodriver 0.20.1
1528817592563   geckodriver INFO    Listening on 127.0.0.1:23550
1528817593461   mozrunner::runner   INFO    Running command: "C:\\Program Files\\Mozilla Firefox\\firefox.exe" "-marionette" "--headless" "-profile" "C:\\Users\\ATECHM~1\\AppData\\Local\\Temp\\rust_mozprofile.M2jv24VJ0QMg"
*** You are running in headless mode.
1528817597139   Marionette  INFO    Listening on port 8949
1528817597577   Marionette  WARN    TLS certificate errors will be ignored for this session
Jun 12, 2018 9:03:17 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
Mozilla Firefox Headless Browser Initialized
Page Title is : Google

Upvotes: 0

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