java - Selenium error 'Permission denied to access property' -

is there way resolve 'permission denied access property' error?

i have following code:

system.setproperty("webdriver.gecko.driver","/home/ xxx /documents/selenium/geckodriver"); webdriver driver = new firefoxdriver();  driver.get("https:/unsplash.com/"); system.out.println(driver.getpagesource()); 

and last line, 'getpagesource()' causing error:

exception in thread "main" org.openqa.selenium.webdriverexception: permission denied access property "__raven_wrapper__"  

(warning: server did not provide stacktrace information)

i've seen in question (permission denied access property "document") overcome error use chrome driver instead.

is problem firefoxdriver or there way around?

thanks,