UP's single sign-on (http://go.up.edu) requires an add-on that conflicts with the SciFinder logon script in Firefox. If you are using Firefox and can't get past the SciFinder logon screen, you can disable the add-on (Go to Tools -> Add-ons -> Extensions, then disable Cloud Application Manager). Another option is to use a different browser (Chrome, IE, Safari).
Use of SciFinder Scholar is restricted to current UP students, faculty and staff and is limited to academic research, teaching and publication purposes only. SciFinder Scholar is available from on campus or off campus. However, a onetime registration is required before you can use it.