WebDriverException: Message: Service C:\Program Files\Mozilla Firefox\firefox.exe unexpectedly exited using DesiredCapabilities through Selenium

Question

I need to use the most recent version of firefox on my Windows Computer. Hence dont want to use the default ghecko driver. Here is how close I got.

 import time
 from selenium import webdriver
 from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
 from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

 binary = webdriver.Firefox(executable_path= r'C:\Program Files\Mozilla Firefox\firefox.exe')
 caps = DesiredCapabilities.FIREFOX.copy()

 caps['marionette'] = True

 driver = webdriver.Firefox(firefox_binary=binary,capabilities=caps, executable_path=(os.path.abspath("geckodriver.exe")))

 time.sleep(5)
 driver.get("http://www.google.com")

The latest browser launches with default page however driver.get() doesnt work while exiting with a WebDriverException: Message: Service C:\Program Files\Mozilla Firefox\firefox.exe unexpectedly exited. Status code was: 1. How do I get around.

It seems like your firefox is crashing. Does normal (non-automated) navigation work? — Alan Williams, Apr 16 '19 at 01:32
Yes it does. Im using it at the same time. You recommend I refresh ? — tagni hugues pascal, Apr 16 '19 at 01:34
While I'm not an expert with firefox, you could try running your script without having it already running at the same time. It does seem that this can cause problems per this [question](https://stackoverflow.com/questions/1999922/selenium-firefox-is-already-running-error) — Alan Williams, Apr 16 '19 at 01:36
Following your advise it launches the default page but neither navigates away nor gives any error. — tagni hugues pascal, Apr 16 '19 at 01:42
This could be a firewall issue, do you have any firewalls enabled? If so, try disabling them and retrying the script. — Alan Williams, Apr 16 '19 at 01:49
Okay let me try that as Ive just tried with Chrome as well and ended up with a status code of 0 — tagni hugues pascal, Apr 16 '19 at 01:53
No luck still stuck , firefox exit code 1 chrome exit code 0 — tagni hugues pascal, Apr 16 '19 at 01:58
Well, given that chrome exits with 0, it is likely something with Firefox then, but beyond that I have no other ideas. Good luck! — Alan Williams, Apr 16 '19 at 01:59
Thanks, I tried on a completely different computer same results — tagni hugues pascal, Apr 16 '19 at 02:04

score 1 · Answer 1 · answered Apr 16 '19 at 07:32

1

You need to take care of a couple of things here:

The argument executable_path is used to pass the absolute path of the geckodriver binary.
If Firefox is installed at the default location you don't have to pass the absolute path of the firefox binary at all.
If you are using Selenium 3.x, GeckoDriver and Firefox, the capability marionette is set to true by default you don't have to explicitly mention that.
Inducing time.sleep() degrades the Test Execution Performance use WebDriverWait instead.

Your effective code block will be:

from selenium import webdriver
from selenium.webdriver.firefox.options import Options
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

binary = r'C:\Program Files\Mozilla Firefox\firefox.exe'
options = Options()
options.binary = binary
cap = DesiredCapabilities().FIREFOX.copy()
cap["marionette"] = True #optional
driver = webdriver.Firefox(firefox_options=options, capabilities=cap, executable_path="C:\\Utility\\BrowserDrivers\\geckodriver.exe")
driver.get("http://google.com/")
print ("Firefox Initialized")
driver.quit()

Console Output:
```
Firefox Initialized
```

answered Apr 16 '19 at 07:32

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Thanks , launches with the ghecko driver which Im not after – tagni hugues pascal Apr 16 '19 at 08:38
@tagnihuguespascal What you are after? – undetected Selenium Apr 16 '19 at 08:39
I want to launch Mozilla Firefox Browser and not the ghecko one. – tagni hugues pascal Apr 16 '19 at 08:56
If you are using _Selenium 3.x_ and **marionette** enabled _Modern Firefox_ browsers you have to mandatory use _GeckoDriver_. In your code trials you have used it perfectly as in `executable_path=(os.path.abspath("geckodriver.exe")`.Are you looking for something else? – undetected Selenium Apr 16 '19 at 08:56
I want to launch the firefox Browser installed on my computer and not use ghecko. Thats what Im trying to acheive. – tagni hugues pascal Apr 16 '19 at 09:04
That's what I mentioned you **can't** and it is not _ghecko_ but _**gecko**_ – undetected Selenium Apr 16 '19 at 09:05

WebDriverException: Message: Service C:\Program Files\Mozilla Firefox\firefox.exe unexpectedly exited using DesiredCapabilities through Selenium

1 Answers1