Ich versuche, den folgenden Python-Code auszuführen, um ein Firefox-Webdriver-Fenster über Selenium zu erstellen:

from selenium import webdriver
driver = webdriver.Firefox()
driver.get("http://www.google.com")

Während dieser Code vor einigen Wochen einwandfrei funktionierte, wird jetzt die folgende Vorahnung ausgegeben:

 Traceback (most recent call last):
  File "test.py", line 2, in <module>
    driver = webdriver.Firefox()
  File "c:\python27\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 60, in __init__
    self.binary, timeout),
  File "c:\python27\lib\site-packages\selenium\webdriver\firefox\extension_connection.py", line 47, in __init__
    self.binary.launch_browser(self.profile)
  File "c:\python27\lib\site-packages\selenium\webdriver\firefox\firefox_binary.py", line 61, in launch_browser
    self._wait_until_connectable()
  File "c:\python27\lib\site-packages\selenium\webdriver\firefox\firefox_binary.py", line 105, in _wait_until_connectable
    self.profile.path, self._get_firefox_output()))
selenium.common.exceptions.WebDriverException: Message: 'Can\'t load the profile. Profile Dir: c:\\users\\douglas\\appdata\\local\\temp\\tmpuf4ipq Firefox output: *** LOG addons.xpi: startup\r\n*** WARN addons.xpi: Ignoring missing add-on in C:\\Program Files\\CheckPoint\\ZAForceField\\WOW64\\TrustChecker\r\n*** WARN addons.xpi: Ignoring missing add-on in C:\\ProgramData\\Norton\\{78CA3BF0-9C3B-40e1-B46D-38C877EF059A}\\NSM_2.9.5.20\\coFFFw\r\n*** LOG addons.xpi: Skipping unavailable install location app-system-local\r\n*** LOG addons.xpi: Skipping unavailable install location app-system-share\r\n*** LOG addons.xpi: checkForChanges\r\n*** LOG addons.xpi: No changes found\r\n*** Blocklist::_loadBlocklistFromFile: blocklist is disabled\r\n************************************************************\r\n* Call to xpconnect wrapped JSObject produced this error:  *\r\n[Exception... "\'[JavaScript Error: "this._defaultEngine is null" {file: "resource://gre/components/nsSearchService.js" line: 3527}]\' when calling method: [nsIBrowserSearchService::currentEngine]"  nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)"  location: "JS frame :: chrome://browser/content/search/search.xml :: get_currentEngine :: line 130"  data: yes]\r\n************************************************************\r\n************************************************************\r\n* Call to xpconnect wrapped JSObject produced this error:  *\r\n[Exception... "\'[JavaScript Error: "this._defaultEngine is null" {file: "resource://gre/components/nsSearchService.js" line: 3527}]\' when calling method: [nsIBrowserSearchService::currentEngine]"  nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)"  location: "JS frame :: chrome://browser/content/search/search.xml :: get_currentEngine :: line 130"  data: yes]\r\n************************************************************\r\n************************************************************\r\n* Call to xpconnect wrapped JSObject produced this error:  *\r\n[Exception... "\'[JavaScript Error: "this._defaultEngine is null" {file: "resource://gre/components/nsSearchService.js" line: 3527}]\' when calling method: [nsIBrowserSearchService::currentEngine]"  nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)"  location: "JS frame :: resource://app/components/nsBrowserGlue.js :: <TOP_LEVEL> :: line 354"  data: yes]\r\n************************************************************\r\n************************************************************\r\n* Call to xpconnect wrapped JSObject produced this error:  *\r\n[Exception... "\'[JavaScript Error: "this._defaultEngine is null" {file: "resource://gre/components/nsSearchService.js" line: 3527}]\' when calling method: [nsIBrowserSearchService::currentEngine]"  nsresult: "0x80570021 (NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS)"  location: "JS frame :: resource://app/components/nsBrowserGlue.js :: <TOP_LEVEL> :: line 354"  data: yes]\r\n************************************************************\r\n'

Weiß jemand, was dies bedeutet oder was ich tun kann, um den Fehler zu beheben und den Code erwartungsgemäß auszuführen? Ich habe über die Google-Suche verwandte Fehlermeldungen gefunden, aber nichts, was es mir ermöglicht hätte, das Problem zu beheben.

Für das, was es wert ist, kann ich einen Chrome Webdriver ohne Probleme öffnen, indem ich die zweite Zeile der obigen in änderedriver = webdriver.Chrome().

Ich verwende Python 2.7, Selenium 2.35.0 (ich habe gerade "pip install selenium --upgrade" ausgeführt) und Firefox 26.0 auf einem Windows 8-Computer. Alle Tipps oder Ratschläge, die andere anbieten können, sind sehr willkommen.