Python selenium error when trying to launch firefox

Question

I am getting an error when trying to open Firefox using Selenium in ipython notebook. I've looked around and have found similar errors but nothing that exactly matches the error I'm getting. Anybody know what the problem might be and how I fix it? I'm using Firefox 22.

The code I typed in was as follows:

from selenium import webdriver

driver = webdriver.Firefox()

The error the code returns is as follows:

    WindowsError                              Traceback (most recent call last)

<ipython-input-7-fd567e24185f> in <module>()

----> 1 driver = webdriver.Firefox()

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\webdriver.pyc in __init__(self, firefox_profile, firefox_binary, timeout, capabilities, proxy)

     56         RemoteWebDriver.__init__(self,

     57             command_executor=ExtensionConnection("127.0.0.1", self.profile,

---> 58             self.binary, timeout),

     59             desired_capabilities=capabilities)

     60         self._is_remote = False

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\extension_connection.pyc in __init__(self, host, firefox_profile, firefox_binary, timeout)

     45         self.profile.add_extension()

     46 

---> 47         self.binary.launch_browser(self.profile)

     48         _URL = "http://%s:%d/hub" % (HOST, PORT)

     49         RemoteConnection.__init__(

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\firefox_binary.pyc in launch_browser(self, profile)

     45         self.profile = profile

     46 

---> 47         self._start_from_profile_path(self.profile.path)

     48         self._wait_until_connectable()

     49 

C:\Anaconda\lib\site-packages\selenium\webdriver\firefox\firefox_binary.pyc in _start_from_profile_path(self, path)

     71 

     72         Popen(command, stdout=PIPE, stderr=STDOUT,

---> 73               env=self._firefox_env).communicate()

     74         command[1] = '-foreground'

     75         self.process = Popen(

C:\Anaconda\lib\subprocess.pyc in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags)

    677                             p2cread, p2cwrite,

    678                             c2pread, c2pwrite,

--> 679                             errread, errwrite)

    680 

    681         if mswindows:

C:\Anaconda\lib\subprocess.pyc in _execute_child(self, args, executable, preexec_fn, close_fds, cwd, env, universal_newlines, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite)

    894                                          env,

    895                                          cwd,

--> 896                                          startupinfo)

    897             except pywintypes.error, e:

    898                 # Translate pywintypes.error to WindowsError, which is

WindowsError: [Error 2] The system cannot find the file specified

Answer 1

You would have to try specifying your Firefox binary when initializing Firefox()

from selenium import webdriver

from selenium.webdriver.firefox.firefox_binary import FirefoxBinary

binary = FirefoxBinary('path/to/binary')

driver = webdriver.Firefox(firefox_binary=binary)

Note that the default path the FirefoxDriver is looking for is at %PROGRAMFILES%\Mozilla Firefox\firefox.exe. See FirefoxDriver.

Or add your path of Firefox binary to Windows' PATH, whose demonstration you can check out here.