Selenium WebDriver未与Firefox 20连接

我使用的是selenium-server-standalone-2.28.0.jar。 启动了中心和 使用以下命令启动侦听器

"C:\Program Files (x86)\Java\jre7\bin\Java.exe" -jar selenium-server-standalone-2.28.0.jar -role webdriver -hub http://localhost:4444/grid/register -port 5557 -browser "browserName=firefox",maxInstances=5,platform=WINDOWS,javaScriptEnabled=true,TAKES_SCREENSHOT=true

将打开一个空白Firefox窗口，然后显示以下错误：

Execute
System.InvalidOperationException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
*** LOG addons.manager: Application has been upgraded
*** LOG addons.xpi: startup
*** LOG addons.xpi: Skipping unavailable install location app-system-local
*** LOG addons.xpi: Skipping unavailable install location app-system-share
*** LOG addons.xpi: Ignoring file entry whose name is not a valid add-on ID:         C:\Users\PR~1.GRO\AppData\Local\Temp\anonymous768293325561108937webdriver-profile\extensions\webdriver-staging
*** LOG addons.xpi: checkForChanges
*** LOG addons.xpi-utils: Opening database
*** LOG addons.xpi-utils: Creating database schema
*** LOG addons.xpi: New add-on fxdriver@googlecode.com installed in app-profile
*** Blocklist::_loadBlocklistFromFile: blocklist is disabled
*** LOG addons.xpi: New add-on {972ce4c6-7e08-4474-a285-3208198ce6fd} installed in app-global
*** LOG addons.xpi: New add-on fiddlerhook@fiddler2.com installed in winreg-app-global
*** LOG addons.xpi: New add-on avg@toolbar installed in winreg-app-global
*** LOG addons.xpi: New add-on web2pdfextension@web2pdf.adobedotcom installed in winreg-app-global
*** LOG addons.xpi: Updating database with changes to installed add-ons
*** LOG addons.xpi-utils: Updating add-on states
*** LOG addons.xpi-utils: Writing add-ons list
*** LOG addons.manager: shutdown
*** LOG addons.xpi: shutdown
*** LOG addons.xpi-utils: shutdown
*** LOG addons.xpi-utils: Database closed
*** LOG addons.xpi: startup
*** LOG addons.xpi: Skipping unavailable install location app-system-local
*** LOG addons.xpi: Skipping unavailable install location app-system-share
*** LOG addons.xpi: Ignoring file entry whose name is not a valid add-on ID: C:\Users\PR~1.GRO\AppData\Local\Temp\anonymous768293325561108937webdriver-profile\extensions\webdriver-staging
*** LOG addons.xpi: checkForChanges
*** LOG addons.xpi: No changes found

at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse) in c:\Projects\WebDriver\trunk\dotnet\src\WebDriver\Remote\RemoteWebDriver.cs:line 1002
at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters) in c:\Projects\WebDriver\trunk\dotnet\src\WebDriver\Remote\RemoteWebDriver.cs:line 844
at OpenQA.Selenium.Remote.RemoteWebDriver.StartSession(ICapabilities desiredCapabilities) in c:\Projects\WebDriver\trunk\dotnet\src\WebDriver\Remote\RemoteWebDriver.cs:line 809
at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(ICommandExecutor commandExecutor, ICapabilities desiredCapabilities) in c:\Projects\WebDriver\trunk\dotnet\src\WebDriver\Remote\RemoteWebDriver.cs:line 85
at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(Uri remoteAddress, ICapabilities desiredCapabilities, TimeSpan commandTimeout) in c:\Projects\WebDriver\trunk\dotnet\src\WebDriver\Remote\RemoteWebDriver.cs:line 117
at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(Uri remoteAddress, ICapabilities desiredCapabilities) in c:\Projects\WebDriver\trunk\dotnet\src\WebDriver\Remote\RemoteWebDriver.cs:line 106
at SHL.Test.Selenium.ScreenShotRemoteWebDriver..ctor(Uri remoteAddress, ICapabilities desiredCapabilities) in C:\Preethi\vs1\WebTest\SeleniumWebTest\Framework\SHL.Test.Selenium\ScreenShotRemoteWebDriver.cs:line 9
at SHL.Test.Selenium.TestContext..ctor(Action testRun, ITestEnvironment testEnvironment, DesiredCapabilities desiredCapabilities) in C:\Preethi\vs1\WebTest\SeleniumWebTest\Framework\SHL.Test.Selenium\TestContext.cs:line 31
at SHL.Test.Selenium.TestBase.InitSelenium(DesiredCapabilities desiredCapabilities, ITestEnvironment testEnvironment, Action testRun) in C:\Preethi\vs1\WebTest\SeleniumWebTest\Framework\SHL.Test.Selenium\TestBase.cs:line 112

调试时，转到Firefox浏览器加载项列表，发现Firefox webDriver与Firefox 20.0不兼容 当前的FirefoxWebDirver版本是2.28.0

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我可以使用哪一个最新的Firefox版本，或者是否有其他版本可以解决这个问题？

Firefox 20刚刚推出，Selenium开发者可能需要几天时间来解决突然出现的任何兼容性问题

Selenium的最新版本是2.31.0（可用），它将与Firefox 19.0.2一起使用。任何低于2.30.0的Selenium版本都不适用于FireFox 19及以上版本，因此我建议您首先尝试将Selenium更新到最新版本

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很明显，我还没有下载并试用Firefox20，所以我不知道Selenium 2.31.0与它有多兼容。

我有Ubuntu 12.04 64位。Selenium在最近更新到20后停止工作。我使用的是Eclipse（JDK 7）。我将Eclipse.ini改为使用JDK 6，它开始工作。

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Webdriver偶尔挂起一次，但大部分时间都能正常工作（这可能是我正在测试的网站的一个问题）。为了安全起见，我现在禁用了Firefox自动更新

改用最新版本。目前为2.32.0

看 或直接下载

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它适合我

试试Selenium 2.32版。它适合Firefox 20。