System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket) +8828135
  AspDotNetStorefront.Global.tX3TGN0Tm(Object , EventArgs ) +1888
  AspDotNetStorefront.Global.Application_AuthenticateRequest(Object sender, EventArgs e) +44
  System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
  System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

When I go to a website, http://www.apsltd.com/, I get the following error with only Firefox. It works completely fine on all other browsers. I cleared my cache and I cannot figure out the issue. Any help? Here is the error and thanks! Server Error in '/' Application. Invalid value for 'encryptedTicket' parameter. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentException: Invalid value for 'encryptedTicket' parameter. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [ArgumentException: Invalid value for 'encryptedTicket' parameter.] System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket) +8828135 AspDotNetStorefront.Global.tX3TGN0Tm(Object , EventArgs ) +1888 AspDotNetStorefront.Global.Application_AuthenticateRequest(Object sender, EventArgs e) +44 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75