Planning Browser Support for AD FS

Lync Online and Office 365 are compatible with most modern web browsers, including Internet Explorer, Firefox, Chrome, and Safari. However, by default the use of SSO with Lync Online/Office 365 is dependent on a browser’s support for Extended Protection for Authentication, a feature that helps protect against man-in-the-middle attacks. If a browser does not support Extended Protection for Authentication, users will likely receive logon prompts on a regular basis when accessing Lync Online and other Office 365 services.

At the time of writing, several versions of Firefox, Chrome, and Safari did not support Extended Protection for Authentication; therefore, if these browsers are planned for Lync Online, some adjustments ...

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