我正在使用 selenium-server-standalone-2.28.0.jar 。使用以下命令启动集线器并启动侦听器
"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
打开一个空白的 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，去火狐浏览器插件列表发现火狐webDriver与火狐20.0不兼容当前火狐webdirver版本为2.28.0
我可以使用哪个最新的 Firefox 版本，或者有什么替代方案可以解决这个问题？