Hi all,
How to fix this error bellow?
I have reinstalled Firefox, the extension and PAD, still nothing.

Error details:
Microsoft.Flow.RPA.Desktop.Modules.SDK.ActionException: Failed to launch Firefox. Please check that it is properly installed on your computer. ---> Microsoft.Flow.RPA.Desktop.UIAutomation.WebAutomation.Core.Browser.WebBrowserException: The system cannot find the file specified ---> System.ComponentModel.Win32Exception: The system cannot find the file specified
at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
at Microsoft.Flow.RPA.Desktop.UIAutomation.WebAutomation.Core.WebExtensionsBrowser.WebExtensionsBrowserLauncher.LaunchNew(ProcessWindowStyle processWindowStyle, String initialUrl, Int32 timeout, WebPageCourseOfActionIfDialogAppearsEnum dialogHandlingMode, String dialogButtonName)
--- End of inner exception stack trace ---
at Microsoft.Flow.RPA.Desktop.UIAutomation.WebAutomation.Core.WebExtensionsBrowser.WebExtensionsBrowserLauncher.LaunchNew(ProcessWindowStyle processWindowStyle, String initialUrl, Int32 timeout, WebPageCourseOfActionIfDialogAppearsEnum dialogHandlingMode, String dialogButtonName)
at Microsoft.Flow.RPA.Desktop.UIAutomation.Plugin.Firefox.Firefox.StartNew(ProcessWindowStyle processWindowStyle, String initialUrl, Int32 timeout, WebPageCourseOfActionIfDialogAppearsEnum dialogHandlingMode, String dialogButtonName)
at Microsoft.Flow.RPA.Desktop.Modules.WebAutomation.Actions.WebAutomationActions.LaunchNewFirefox(Variant initialUrl, Variant firefoxTabTitle, Variant firefoxTabUrl, Variant dialogButtonToPress, Variant& webBrowserInstance, Int32 operation, Int32 windowState, Int32 attachMode, Boolean waitForWebPageToLoad, Int32 waitForPageToLoadTimeout, Int32 courseOfActionIfDialogAppears, Boolean clearCache, Boolean clearCookies, Int32 timeout)
at Microsoft.Flow.RPA.Desktop.Modules.WebAutomation.Actions.LaunchFirefoxBase.Execute(ActionContext context)
--- End of inner exception stack trace ---
at Microsoft.Flow.RPA.Desktop.Modules.WebAutomation.Actions.LaunchFirefoxBase.Execute(ActionContext context)
at Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)