How do I disable Firefox logging in Selenium using

Question

I am using:

• firefox version 50.1.0
• geckodriver version 0.11.1
• selenium-java 3.0.1

I have tried

FirefoxProfile profile = new FirefoxProfile();
profile.setPreference("webdriver.log.browser.ignore", true);
profile.setPreference("webdriver.log.driver.ignore", true);
profile.setPreference("webdriver.log.profiler.ignore", true);
FirefoxDriver driver = new FirefoxDriver();

and

LoggingPreferences preferences = new LoggingPreferences();
preferences.enable(LogType.BROWSER, Level.OFF);
preferences.enable(LogType.CLIENT, Level.OFF);
preferences.enable(LogType.DRIVER, Level.OFF);
preferences.enable(LogType.PERFORMANCE, Level.OFF);
preferences.enable(LogType.SERVER, Level.OFF);
DesiredCapabilities capabilities = DesiredCapabilities.firefox();
capabilities.setCapability(CapabilityType.LOGGING_PREFS, preferences);
FirefoxDriver driver = new FirefoxDriver(capabilities);

neither of these methods does anything to stop logging. Here is console output if that helps somehow:

• first method: http://pastebin.com/23nate2G
• second method: http://pastebin.com/NwmWEeXT

For those wondering, i have log4j 1.2.17 in my pom.xml but have no log4j.properties or log4j.xml and I do not use it at all.

---

To clarify: when I say logging I mean the console output in IntelliJ IDEA. I am using Java.

Answer 1

You can define the desired logging level over command line in geckodriver.exe.

geckodriver.exe -help    
USAGE:
    geckodriver.exe [FLAGS] [OPTIONS]   
...
OPTIONS:
        --log <LEVEL>
            Set Gecko log level [values: fatal, error, warn, info, config,
            debug, trace]

If you use geckodriver from selenium, you have two option:

• Start geckodriver.exe separately with custom arguments, and use it from selenium over RemoteWebDriver
• Create a custom wrapper, to add extra parameters to geckodriver.exe

Example geckodriver wrapper bat file (for windows):

@ECHO OFF
ECHO Starting geckodriver: %0 %*
.\GeckoDriver\geckodriver.exe --log fatal %* > NUL 2>&1

In java you can define the geckodriver executable path, over webdriver.gecko.driver system property:

System.setProperty("webdriver.gecko.driver", "c:/selenium/geckodriver/gdrvwrapper.bat");