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Not able to open any page in firefox browser

This topic contains 5 replies, has 2 voices, and was last updated by  Nandan Singh 1 year, 7 months ago.

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #4002

    Shobhna Garg

    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

    at com.google.common.base.Preconditions.checkState(Preconditions.java:199)

    at org.openqa.selenium.remote.service.DriverService.findExecutable(DriverService.java:109)

    at org.openqa.selenium.firefox.GeckoDriverService.access$100(GeckoDriverService.java:38)

    at org.openqa.selenium.firefox.GeckoDriverService$Builder.findDefaultExecutable(GeckoDriverService.java:91)

    at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:296)

    at org.openqa.selenium.firefox.FirefoxDriver.createCommandExecutor(FirefoxDriver.java:244)

    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:219)

    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:214)

    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:210)

    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:123)

    at InvokeBrowser.main(InvokeBrowser.java:8)



    Nandan Singh

    Shobhna, in this problem, Webdriver is not able to find default Firefox executable file. This can be solved by providing default profile of your Firefox Driver.

    For providing default profile use following step :

    1. Enter following string in windows run : %APPDATA%\Mozilla\Firefox\Profiles\

    2. It will open folder where your default profile of Firefox is saved.

    3. Open default profile folder and copy entire path. It will be like “C:\Users\home\AppData\Roaming\Mozilla\Firefox\Profiles\9xj5wht8.default”

    4. Now create Firefox profile in your script and invoke firefox. This will be looked like:

    File path = new File(“C:\\Users\\home\\AppData\\Roaming\\Mozilla\\Firefox\\Profiles\\9xj5wht8.default”);

    FirefoxProfile profile = new FirefoxProfile(path);

    FirefoxDriver driver = new FirefoxDriver(profile);


    Hope this will resolve your problem.


    Shobhna Garg

    Still facing the same issue My script is as follows:

    import java.io.File;


    import org.openqa.selenium.firefox.FirefoxDriver;

    import org.openqa.selenium.firefox.FirefoxProfile;




    public class InvokeBrowser {


    public static void main(String[] args) {


    File path = new File(“C:\\Users\\shobhna\\AppData\\Roaming\\Mozilla\\Firefox\\Profiles\\8ogf6qo3.default”);


    FirefoxProfile profile = new FirefoxProfile(path);



    FirefoxDriver driver = new FirefoxDriver(profile);









    Nandan Singh

    From your exception, it seems you are using Mozilla’s Gecko engine ( I don’t know how !!!). For this first you need to Marionette, which is nothing but the automation driver for Gecko engine.

    Please try following steps for using this :

    1. Download Marionette Driver from following link  :


    2. Save above file at some location and unzip same.

    3. Now copy the path till the marionette executable file and use following code :

    File path = new File(“E:\\driver\\geckodriver.exe”); // this is the path till executable file

    System.setProperty(“webdriver.gecko.driver”, path.getAbsolutePath());

    WebDriver driver = new MarionetteDriver();


    To learn about Marionette please refer following link :


    Hope this will solve your problem.


    Shobhna Garg

    It works but still some message “1469894001850 Marionette INFO Listening on port 52247” appears


    Nandan Singh

    Good to hear, it is working.

    And all these messages are nothing but the “logs” generated during starting of server.

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