selenium.common.exceptions.WebDriverException: Message: connection refused

Question

Here is my code:

from selenium import webdriver

browser = webdriver.Firefox()

browser.get('http://www.python.org')

browser.close()

It launched the firefox browser when I ran this script, but the page is blank, then the command line shows the error message:

Traceback (most recent call last):
  File "ad.py", line 3, in <module>
    browser = webdriver.Firefox()
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/firefox/webdriver.py", line 76, in __init__
    keep_alive=True)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 92, in __init__
    self.start_session(desired_capabilities, browser_profile)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 179, in start_session
    response = self.execute(Command.NEW_SESSION, capabilities)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/webdriver.py", line 236, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python2.7/dist-packages/selenium/webdriver/remote/errorhandler.py", line 192, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: connection refused

My python vesion is 2.7.3 and the selenium version is selenium-3.0.0.b3.egg-info

Please, how do I solve the problem ...

Solution 1

Check your geckodriver.log file (should be in the same directory as python file)

If it says Error: GDK_BACKEND does not match available displays then install pyvirtualdisplay:

pip install pyvirtualdisplay selenium

You might need xvfb too:

sudo apt-get install xvfb # Debian

sudo yum install Xvfb # Fedora

Then try adding this code:

from pyvirtualdisplay import Display
display = Display(visible=0, size=(800, 600))
display.start()

Full example:

from pyvirtualdisplay import Display
from selenium import webdriver

display = Display(visible=0, size=(800, 600))
display.start()

browser = webdriver.Firefox()
browser.get('http://www.python.org')

browser.close()

Solution 2

As mentioned by @kervvv this issue is probably related to an older version of Firefox than what the version of selenium and/or geckodriver expect(s) or need(s). It should be noted, as far as I can tell, that the specific error message from selenium is somewhat generic or vague; so, it doesn't explicitly show why the error occurs.

In case users are here looking for help while using an older version of Firefox, including the Extended Support Release (ESR), the following solution should work just fine.

1. Visit the Firefox download page to download a Beta, Nightly, or Developer version of Firefox.
2. Extract the package into an arbitrary location on your filesystem (anywhere you want)

3. Specify the FirefoxBinary within your code or script to point to the downloaded location.

   from selenium import webdriver
   from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
   binary = FirefoxBinary('/home/username/firefox/firefox')
   driver = webdriver.Firefox(firefox_binary=binary)
   driver.get(url)
   

That works for me on Gentoo, for example, where the version of geckodriver (0.20.0) and selenium (3.11.0) are the latest available upstream, while Firefox (ESR) is at version 52.

Solution 3

Had the same issue. Thought it was proxy or port related (to no avail) but what solved my problem was just simply updating Firefox. I was running 52.0.xxx and updated to 57.0.2. Link here.

Solution 4

Had this problem as well. Needed to set the DISPLAY. For me Xvfb frame buffer is running on local machine at :99 so.

$ export DISPLAY=:99

Solution 5

First thing to do: Update Firefox and make sure you have the latest version of geckodriver installed (https://github.com/mozilla/geckodriver/releases)

View more solutions

Comments

[exhuma]

I can confirm that using a virtual display like this fixed the problem for me.

[JMG]

worked for me but need to use Xvfp on Centos (capital X)

[Mario Palumbo]

0.29.1 have the same problem.