Python selenium error when trying to launch firefox -

i getting error when trying open firefox using selenium in ipython notebook. i've looked around , have found similar errors nothing matches error i'm getting. know problem might , how fix it? i'm using firefox 22.

the code typed in follows:

from selenium import webdriver driver = webdriver.firefox() 

the error code returns 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 windowserror,  windowserror: [error 2] system cannot find file specified 

try specify firefox binary when initialize firefox()

from selenium import webdriver selenium.webdriver.firefox.firefox_binary import firefoxbinary  binary = firefoxbinary('path/to/binary') driver = webdriver.firefox(firefox_binary=binary) 

the default path firefoxdriver looking @ %programfiles%\mozilla firefox\firefox.exe. see firefoxdriver

or add path of firefox binary windows' path.