Python Selenium 3与FireFox 50的兼容性问题？Can'；I don’我得不到任何消息

有两个环境，一个是使用Firefox 47和Selenium 2.0的本地环境，另一个是使用Firefox 50和Selenium 3的远程vm环境。对于下面相同的代码，输出是不同的（较新的版本没有iFrame可供切换）。我的代码是问题所在还是与较新版本存在兼容性问题

自从我检查了当前的\u窗口\u句柄后，switchToLatestWindow（self.browser）在这两个方面都起作用

    switchToLatestWindow(self.browser)
    time.sleep(3)

    logger.info("===============================================================================================")
    logger.info(self.browser.current_window_handle)
    logger.info(self.browser.find_elements_by_tag_name('iframe'))
    self.browser.switch_to_frame("WorkAreaFrame1popup")
    logger.info("***********************************************************")
    logger.info(self.browser.find_elements_by_tag_name('iframe'))

    # enter firstName and lastName
    result = self.enterFirstName(firstName) and self.enterLastName(lastName)
    if not result:
        return False
    # switch to new windowssss
    logger.info(self.browser.find_elements_by_tag_name('iframe'))
    switchToLatestWindow(self.browser)

    logger.info(self.browser.find_elements_by_tag_name('iframe'))
    time.sleep(3)
    logger.info("++++++++++++++++++++++++++++++++++++++++++++++++++")
    logger.info(self.browser.current_window_handle)
    logger.info(self.browser.find_elements_by_tag_name('iframe'))
    self.browser.switch_to_frame("WorkAreaFrame1popup")
    logger.info("------------------------------------------------------------------")

    time.sleep(2)
    return result

以下是输出 旧版本：

INFO:2017-02-06 12:12:49,615; TCID_4196; createClientProspect.py:1119; ===============================================================================================
INFO:2017-02-06 12:12:49,627; TCID_4196; createClientProspect.py:1120; {e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}
INFO:2017-02-06 12:12:49,635; TCID_4196; createClientProspect.py:1121; [<selenium.webdriver.remote.webelement.WebElement (session="60a21376-7577-4c81-ae79-1233564c227a", element="{23eabe2b-9e57-4319-97d2-d7959f302391}")>, <selenium.webdriver.remote.webelement.WebElement (session="60a21376-7577-4c81-ae79-1233564c227a", element="{db69ec0c-58ba-41ba-b1a9-dd4b1feec08a}")>]
INFO:2017-02-06 12:12:49,644; TCID_4196; createClientProspect.py:1123; ***********************************************************
INFO:2017-02-06 12:12:49,653; TCID_4196; createClientProspect.py:1124; []
INFO:2017-02-06 12:12:49,654; TCID_4196; common_utils.py:339; Randomly generated name:Cagmysp
INFO:2017-02-06 12:12:49,654; TCID_4196; api.py:58; Entering 'Cagmysp' on object named First Name on page New Profile
INFO:2017-02-06 12:12:49,654; TCID_4196; api.py:114; Inject Args: input[id$='builheader_struct.firstname'] to input[id$='builheader_struct.firstname']
INFO:2017-02-06 12:12:50,746; TCID_4196; api.py:142; Successfully interacted with object First Name
INFO:2017-02-06 12:12:50,746; TCID_4196; actionBase.py:103; [PASS] Successfully Entered First Name: Cagmysp
INFO:2017-02-06 12:12:50,746; TCID_4196; common_utils.py:339; Randomly generated name:Bnzpnkbjst
INFO:2017-02-06 12:12:50,746; TCID_4196; api.py:58; Entering 'Bnzpnkbjst' on object named Last Name on page New Profile
INFO:2017-02-06 12:12:50,746; TCID_4196; api.py:114; Inject Args: input[id$='builheader_struct.lastname'] to input[id$='builheader_struct.lastname']
INFO:2017-02-06 12:12:51,872; TCID_4196; api.py:142; Successfully interacted with object Last Name
INFO:2017-02-06 12:12:51,872; TCID_4196; actionBase.py:103; [PASS] Successfully Entered Client Last Name: Bnzpnkbjst
INFO:2017-02-06 12:12:51,881; TCID_4196; createClientProspect.py:1131; []
INFO:2017-02-06 12:12:51,890; TCID_4196; common_utils.py:188; Number of window handles: 2
INFO:2017-02-06 12:12:51,890; TCID_4196; common_utils.py:189; Number of window handles: [u'{3f63d3c1-642f-4e8d-a77b-2136711f94c3}', u'{e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}']
INFO:2017-02-06 12:12:51,894; TCID_4196; common_utils.py:192; Number of window handles: 2
INFO:2017-02-06 12:12:51,894; TCID_4196; common_utils.py:193; Number of window handles: [u'{3f63d3c1-642f-4e8d-a77b-2136711f94c3}', u'{e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}']
INFO:2017-02-06 12:12:51,910; TCID_4196; createClientProspect.py:1134; [<selenium.webdriver.remote.webelement.WebElement (session="60a21376-7577-4c81-ae79-1233564c227a", element="{23eabe2b-9e57-4319-97d2-d7959f302391}")>, <selenium.webdriver.remote.webelement.WebElement (session="60a21376-7577-4c81-ae79-1233564c227a", element="{db69ec0c-58ba-41ba-b1a9-dd4b1feec08a}")>]
INFO:2017-02-06 12:12:59,910; TCID_4196; createClientProspect.py:1136; ++++++++++++++++++++++++++++++++++++++++++++++++++
INFO:2017-02-06 12:12:59,920; TCID_4196; createClientProspect.py:1137; {e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}
INFO:2017-02-06 12:12:59,927; TCID_4196; createClientProspect.py:1138; [<selenium.webdriver.remote.webelement.WebElement (session="60a21376-7577-4c81-ae79-1233564c227a", element="{23eabe2b-9e57-4319-97d2-d7959f302391}")>, <selenium.webdriver.remote.webelement.WebElement (session="60a21376-7577-4c81-ae79-1233564c227a", element="{db69ec0c-58ba-41ba-b1a9-dd4b1feec08a}")>]
INFO:2017-02-06 12:12:59,936; TCID_4196; createClientProspect.py:1140; ------------------------------------------------------------------

INFO:2017-02-06 12:12:49615；TCID4196；createClientProspect.py:1119===============================================================================================
信息：2017-02-06 12:12:49627；TCID4196；createClientProspect.py:1120；{e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}
信息：2017-02-06 12:12:49635；TCID4196；createClientProspect.py:1121；[, ]
信息：2017-02-06 12:12:49644；TCID4196；createClientProspect.py:1123***********************************************************
信息：2017-02-06 12:12:49653；TCID4196；createClientProspect.py:1124；[]
信息：2017-02-06 12:12:49654；TCID4196；一般用途py:339；随机生成的名称：Cagmysp
信息：2017-02-06 12:12:49654；TCID4196；空气污染指数:58 ;；在新配置文件页面上名为First Name的对象上输入“Cagmysp”
信息：2017-02-06 12:12:49654；TCID4196；api.py:114；injectargs:input[id$='builheader\u struct.firstname']以输入[id$='builheader\u struct.firstname']
信息：2017-02-06 12:12:50746；TCID4196；api.py:142；已成功与对象名进行交互
信息：2017-02-06 12:12:50746；TCID4196；actionBase.py:103；[PASS]已成功输入名字：Cagmysp
信息：2017-02-06 12:12:50746；TCID4196；一般用途py:339；随机生成的名称：Bnzpnkbjst
信息：2017-02-06 12:12:50746；TCID4196；空气污染指数:58 ;；在“新建配置文件”页面上名为姓氏的对象上输入“Bnzpnkbjst”
信息：2017-02-06 12:12:50746；TCID4196；api.py:114；injectargs:input[id$='builheader\u struct.lastname']以输入[id$='builheader\u struct.lastname']
信息：2017-02-06 12:12:51872；TCID4196；api.py:142；已成功与对象姓氏进行交互
信息：2017-02-06 12:12:51872；TCID4196；actionBase.py:103；[通过]已成功输入客户端姓氏：Bnzpnkbjst
信息：2017-02-06 12:12:51881；TCID4196；createClientProspect.py:1131；[]
信息：2017-02-06 12:12:51890；TCID4196；一般用途：py:188；窗口句柄数：2
信息：2017-02-06 12:12:51890；TCID4196；一般用途py:189；窗口句柄数：[u'{3f63d3c1-642f-4e8d-a77b-213671F94C3}'，u'{e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}]
信息：2017-02-06 12:12:51894；TCID4196；一般用途py:192；窗口句柄数：2
信息：2017-02-06 12:12:51894；TCID4196；一般用途：py:193；窗口句柄数：[u'{3f63d3c1-642f-4e8d-a77b-213671F94C3}'，u'{e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}]
信息：2017-02-06 12:12:51910；TCID4196；createClientProspect.py:1134；[, ]
信息：2017-02-06 12:12:59910；TCID4196；createClientProspect.py:1136++++++++++++++++++++++++++++++++++++++++++++++++++
信息：2017-02-06 12:12:59920；TCID4196；createClientProspect.py:1137；{e0bbf87b-890d-4b4f-91f9-7c85cb4ac736}
信息：2017-02-06 12:12:59927；TCID4196；createClientProspect.py:1138；[, ]
信息：2017-02-06 12:12:59936；TCID4196；createClientProspect.py:1140------------------------------------------------------------------

以下是较新版本的输出：

INFO:2017-02-06 12:17:54,739; TCID_4196; common_utils.py:193; Number of window handles: [u'2147483651', u'2147483678']
INFO:2017-02-06 12:17:57,759; TCID_4196; createClientProspect.py:1119; ===============================================================================================
INFO:2017-02-06 12:17:57,767; TCID_4196; createClientProspect.py:1120; 2147483678
INFO:2017-02-06 12:17:57,782; TCID_4196; createClientProspect.py:1121; [<selenium.webdriver.firefox.webelement.FirefoxWebElement (session="4079af6b-dda2-4949-95c6-8aa9ff29c49e", element="89bfc3a1-5749-42d4-b0db-da1fc43a0f35")>, <selenium.webdriver.firefox.webelement.FirefoxWebElement (session="4079af6b-dda2-4949-95c6-8aa9ff29c49e", element="3483f682-490c-4c16-8055-fb6c0ee99ad0")>]
INFO:2017-02-06 12:17:57,809; TCID_4196; createClientProspect.py:1123; ***********************************************************
INFO:2017-02-06 12:17:57,821; TCID_4196; createClientProspect.py:1124; []
INFO:2017-02-06 12:17:57,821; TCID_4196; common_utils.py:339; Randomly generated name:Odkdzgvbi
INFO:2017-02-06 12:17:57,821; TCID_4196; api.py:58; Entering 'Odkdzgvbi' on object named First Name on page New Profile
INFO:2017-02-06 12:17:57,822; TCID_4196; api.py:114; Inject Args: input[id$='builheader_struct.firstname'] to input[id$='builheader_struct.firstname']
INFO:2017-02-06 12:17:58,928; TCID_4196; api.py:142; Successfully interacted with object First Name
INFO:2017-02-06 12:17:58,928; TCID_4196; actionBase.py:103; [PASS] Successfully Entered First Name: Odkdzgvbi
INFO:2017-02-06 12:17:58,930; TCID_4196; common_utils.py:339; Randomly generated name:Arrtxwyjs
INFO:2017-02-06 12:17:58,930; TCID_4196; api.py:58; Entering 'Arrtxwyjs' on object named Last Name on page New Profile
INFO:2017-02-06 12:17:58,930; TCID_4196; api.py:114; Inject Args: input[id$='builheader_struct.lastname'] to input[id$='builheader_struct.lastname']
INFO:2017-02-06 12:18:00,101; TCID_4196; api.py:142; Successfully interacted with object Last Name
INFO:2017-02-06 12:18:00,101; TCID_4196; actionBase.py:103; [PASS] Successfully Entered Client Last Name: Arrtxwyjs
INFO:2017-02-06 12:18:00,127; TCID_4196; createClientProspect.py:1131; []
INFO:2017-02-06 12:18:00,138; TCID_4196; common_utils.py:188; Number of window handles: 2
INFO:2017-02-06 12:18:00,138; TCID_4196; common_utils.py:189; Number of window handles: [u'2147483651', u'2147483678']
INFO:2017-02-06 12:18:00,148; TCID_4196; common_utils.py:192; Number of window handles: 2
INFO:2017-02-06 12:18:00,148; TCID_4196; common_utils.py:193; Number of window handles: [u'2147483651', u'2147483678']
INFO:2017-02-06 12:18:00,176; TCID_4196; createClientProspect.py:1134; []
INFO:2017-02-06 12:18:08,177; TCID_4196; createClientProspect.py:1136; ++++++++++++++++++++++++++++++++++++++++++++++++++
INFO:2017-02-06 12:18:08,184; TCID_4196; createClientProspect.py:1137; 2147483678
INFO:2017-02-06 12:18:08,206; TCID_4196; createClientProspect.py:1138; []
INFO:2017-02-06 12:18:08,236; TCID_4196; actionBase.py:103; [FAIL] Failed to create a new Client Prospect
INFO:2017-02-06 12:18:08,236; TCID_4196; actionBase.py:114; Taking a snapshot with filename = screen10319120170206121808.jpg
INFO:2017-02-06 12:18:08,276; TCID_4196; createClientProspect.py:949; Traceback (most recent call last):
  File "C:\ProgramData\sift_client_selenium\developer\createClientProspect.py", line 931, in createNewClientProspect
    result = self.launchNewProfileWindowFirstNameLastName(firstName,lastName) and self.enterProspectDetails() \
  File "C:\ProgramData\sift_client_selenium\developer\createClientProspect.py", line 1139, in launchNewProfileWindowFirstNameLastName
    self.browser.switch_to_frame("WorkAreaFrame1popup")
  File "c:\python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 574, in switch_to_frame
    self._switch_to.frame(frame_reference)
  File "c:\python27\lib\site-packages\selenium\webdriver\remote\switch_to.py", line 85, in frame
    raise NoSuchFrameException(frame_reference)
NoSuchFrameException: Message: WorkAreaFrame1popup

INFO:2017-02-06 12:17:54739；TCID4196；一般用途：py:193；窗口句柄数：[u'2147483651'，u'2147483678']
信息：2017-02-06 12:17:57759；TCID4196；createClientProspect.py:1119===============================================================================================
信息：2017-02-06 12:17:57767；TCID4196；createClientProspect.py:1120；2147483678
信息：2017-02-06 12:17:57782；TCID4196；createClientProspect.py:1121；[, ]
信息：2017-02-06 12:17:57809；TCID4196；createClientProspect.py:1123***********************************************************
信息：2017-02-06 12:17:57821；TCID4196；createClientProspect.py:1124；[]
信息：2017-02-06 12:17:57821；TCID4196；一般用途py:339；随机生成的名称：Odkdzgvbi
信息：2017-02-06 12:17:57821；TCID4196；空气污染指数:58 ;；在“新建配置文件”页面上名为First Name的对象上输入“Odkdzgvbi”
信息：2017-02-06 12:17:57822；TCID4196；api.py:114；injectargs:input[id$='builheader\u struct.firstname']以输入[id$='builheader\u struct.firstname']
信息：2017-02-06 12:17:58928；TCID4196；api.py:142；已成功与对象名进行交互
信息：2017-02-06 12:17:58928；TCID4196；actionBase.py:103；[通过]已成功输入名字：Odkdzgvbi
信息：2017-02-06 12:17:58930；TCID4196；一般用途py:339；随机生成的名称：Arrtxwyjs
信息：2017-02-06 12:17:58930；TCID4196；空气污染指数:58 ;；在“新建配置文件”页面上名为姓氏的对象上输入“Arrtxwyjs”
信息：2017-02-06 12:17:58930；TCID4196；api.py:114；injectargs:input[id$='builheader\u struct.lastname']以输入[id$='builheader\u struct.lastname']
信息：2017-02-06 12:18:00101；TCID4196；api.py:142；已成功与对象姓氏进行交互
信息：2017-02-06 12:18:00101；TCID4196；actionBase.py:103；[通过]已成功输入客户端姓氏：Arrtxwyjs
信息：2017-02-06 12:18:00127；TCID4196；createClientProspect.py:1131；[]
信息：2017-02-06 12:18:00138；TCID4196；一般用途：py:188；窗口句柄数：2
信息：2017-02-06 12:18:00138；TCID4196；一般用途py:189；窗口句柄数：[u'2147483651'，u'2147483678']
信息：2017-02-06 12:18:00148；TCID4196；一般用途py:192；窗口句柄数：2
信息：2017-02-06 12:18:00148；TCID4196；一般用途：py:193；窗口句柄数：[u'2147483651'，u'2147483678']
信息：2017-02-06 12:18:00176；TCID4196；createClientProspect.py:1134；[]
信息：2017-02-06 12:18:08177；TCID4196；createClientProspect.py:1136++++++++++++++++++++++++++++++++++++++++++++++++++
信息：2017-02-06 12:18:08184；TCID4196；createClientProspect.py