Mozilla Firefox 91 Adds Windows Single Sign-on Support

Firefox 91 should feel faster, and it accelerates the online sign-in process for Microsoft accounts.

What you should know

  • Mozilla recently released version 91 of Firefox.
  • Firefox 91 supports Windows single sign-on, which makes it easier to log in to Microsoft accounts on the web.
  • In addition to over 1,200 bug fixes, the latest version of the browser also includes a handful of new features.
  • This week, Mozilla released Firefox version 91. Compared to its predecessor, the most recent version of the browser includes over 1,200 bug fixes and a handful of new features. Support for
  • Windows single sign-on is one of its new features (SSO). This feature allows you to log in to Microsoft work and school accounts from your PC using your credentials.

According to Mozilla, the update also includes “a more comprehensive logic for clearing cookies.” This prevents hidden data leaks.

Here is what’s new, according to Mozilla:

  • Building on Total Cookie Protection, we’ve added a more comprehensive logic for clearing cookies that prevent hidden data leaks and makes it simple for users to determine which websites store local information.
  • Firefox now supports Windows single sign-on for logging into Microsoft, work, and school accounts.
  • The page printing simplification feature has returned! Select the Simplified option under Additional settings > Format when printing to get a clutter-free page.
  • HTTPS-Only Policy: Firefox Private Browsing windows now attempt to secure all connections to websites and revert to insecure connections only if a website does not support security.
  • We have introduced a new locale: Scots (sco)
  • The address bar now displays results for Switch to Tab in Private Browsing windows.
  • Firefox now automatically activates High Contrast Mode on macOS when “Increase Contrast” is selected.
  • Firefox now performs catch-up paints for the vast majority of user interactions, resulting in a 10-20% improvement in response time for the vast majority of user interactions.
  • Mozilla reports that Firefox 91 performs catch-up paints for “almost all user interactions.” According to the business, this results in a 10-20% improvement in response time for the majority of interactions.

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