My Internet Explorer Options:

```
var optionsIE = new InternetExplorerOptions();                        
optionsIE.IntroduceInstabilityByIgnoringProtectedModeSettings = true;
optionsIE.EnsureCleanSession = true;

string IE_DRIVER_PATH = SolutionDirectory + @"\\..\\packages\\Selenium.WebDriver.IEDriver.3.14.0\\driver\\";

InternetExplorerDriverService service =
InternetExplorerDriverService.CreateDefaultService(IE_DRIVER_PATH);
service.Port = port; 
driver = new InternetExplorerDriver(service, optionsIE);

```

When click on link/button that opens an modal popUp, login e password are required on new window (no normal):

[![enter image description here](https://i.stack.imgur.com/9ALqF.jpg)](https://i.stack.imgur.com/9ALqF.jpg)

while I expect another result window.

If I use ff61, I take the correct window form:

[![enter image description here](https://i.stack.imgur.com/TbzX1.jpg)](https://i.stack.imgur.com/TbzX1.jpg)