If you want to use this to automatically log into other sites that you access after logging in once when you come into work:
The site you want to access has to be in the “Local Intranet” zone.
The WIA setting in the IIS site – Authentication icon should be set.
For IE (which can do this behind the scenes):
- Tools / Internet Options / Security / Custom Level (Scroll down to end) / Automatic login only in Intranet zone
- Tools / Internet Options / Advanced (Scroll down to Security) / Enable Windows Integrated Authentication.
For Firefox, see
FireFox supports Integrated Windows Authentication
Configuring Windows Integrated AuthN
Note there are three articles here.
SSO with Office 365: ADFS Logon Web Site / Authentication / Browser Support
AD FS, Enhanced Protection for Authentication (EPA), Chrome and Integrated Windows Authentication (IWA)