McAfee SiteAdvisor blocks execution

PROBLEM

I cannot execute a test in Firefox. I receive the following error in the test log:

Outer Exception Type: System.TimeoutException Message: Wait for condition has timed out HRESULT: 0x80131505 (Official ID (if app.) = COR_E_TIMEOUT, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5381) Call Stack: at ArtOfTest.Common.WaitSync.CheckResult(WaitSync wait, String extraExceptionInfo, Object target) at ArtOfTest.Common.WaitSync.ForT at ArtOfTest.Common.WaitSync.ForT at ArtOfTest.WebAii.Core.Manager.WaitForBrowserToConnect(Int32 browserIndexToWaitFor) at ArtOfTest.WebAii.Core.Manager.LaunchNewBrowser(BrowserType browserToLaunch, Boolean waitForBrowserToConnect, ProcessWindowStyle windowStyle, String arguments) at ArtOfTest.WebAii.Design.Execution.ExecutionEngine.InitializeWeb(ExecutionEngineCreateParams initParams) at ArtOfTest.WebAii.Design.Execution.TestExecuteProxy.CreateAndInitializeEngine(Test test, ExecutionEngineCreateParams cp) at ArtOfTest.WebAii.Design.Execution.TestExecuteProxy.ExecuteTest(ExecuteTestCommand command)

SOLUTION

In some cases McAfee SiteAdvisor could block the test execution in FireFox. Disable it or uninstall it in order to prove whether the antivirus software causes the execution problems.