Mozilla breaks down Windows single sign-on support for Firefox on Windows 10
Firefox gained support for Windows single sign-on last month, and Mozilla outlines how to use it in a new support document.
What you need to know
- Mozilla explains how to set up Windows single sign-on in its Firefox browser in a new support post.
- The feature lets people sign in to Microsoft accounts, work accounts, and school accounts using credentials from Windows 10.
- The feature requires Firefox version 91 or higher.
Mozilla Firefox recently gained support for Windows single sign-on (SSO). With the feature, people can log in to Microsoft accounts, work accounts, and school accounts using credentials from Windows 10. A new support document from Mozilla breaks down how to set up the feature. Note that Firefox version 91 or higher is required to use SSO.
Merill Fernando, program manager of Microsoft's Azure AD, recently highlighted the new feature on Twitter.
Firefox will now work with device-based Conditional Access on Windows 10 and Windows Server 2019. Support is available in Firefox version 91 upwards.Firefox will now work with device-based Conditional Access on Windows 10 and Windows Server 2019. Support is available in Firefox version 91 upwards.— Merill Fernando (@merill) September 9, 2021September 9, 2021
Mozilla breaks down how to enable the feature in its support post:
- Click the Firefox menu button.
- Click Settings.
- Select Privacy & Security.
- Navigate to Logins and Passwords.
- Check the box for **Allow Windows single sign-on for Microsoft, work, and school accounts.
Mozilla also outlines how to make sure your accounts have been configured within Windows 10. To check these settings:
- Open the Windows 10 Settings app.
- Select Accounts.
- Select Email & accounts
You'll then see any accounts that you've configured on your PC.
All the latest news, reviews, and guides for Windows and Xbox diehards.

Sean Endicott is a news writer and apps editor for Windows Central with 11+ years of experience. A Nottingham Trent journalism graduate, Sean has covered the industry’s arc from the Lumia era to the launch of Windows 11 and generative AI. Having started at Thrifter, he uses his expertise in price tracking to help readers find genuine hardware value.
Beyond tech news, Sean is a UK sports media pioneer. In 2017, he became one of the first to stream via smartphone and is an expert in AP Capture systems. A tech-forward coach, he was named 2024 BAFA Youth Coach of the Year. He is focused on using technology—from AI to Clipchamp—to gain a practical edge.
