Hi Everyone, Environment details: OS: Windows7 (64bit) Firefox Version : 90.0.2 (64bit) I am trying to launch Firefox as a different user on my machine and trying to open a web page which uses Widows Single sing on. I want the browser to use the Run as account credential which I used to launch the browser to be used for the Webpage authentication. Tried setting the following configs '''network.automatic-ntlm-auth.trusted-uris''' and '''network.automatic-ntlm-auth.trusted-uris''' but didn't worked out. Any Idea how to force the browser to use the run as credential to authenticate into a webpage page that uses windows Single sign on. Thank You, Kalidhas P