Mozilla has officially launched Firefox 91 today making it available as a download for new users or as an upgrade for existing users. It brings several new features including Windows single sign-on (SSO) support for logging into Microsoft, work, and school accounts and improvements to the logic built into Total Cookie Protection to ensure that it works against hidden data leaks.
With regards to Windows SSO support, Firefox 91 will use any accounts connected to Windows 10 to automatically sign you into any Microsoft websites or school and work portals. If you frequent these sites, the new feature should save you a bit of time and stop you from having to look up passwords. To check if you have an account configured in Windows 10, go to the users section of the Windows 10 settings and then click Add, edit, or remove other users, then go to the Email & accounts section to see what accounts you’ve got connected.
Another new privacy-enhancing feature in this update is the new HTTPS-first policy for Private Browsing windows. This won’t work on all sites but many more will be switched to HTTPS helping to protect your connection from people snooping on your local network. A new update to Total Cookie Protection also helps to protect your data from hidden data leaks and helps users identify which websites are storing local information.
If you’re not concerned about privacy or better Windows integration, perhaps you’ll be pleased to hear the Firefox now performs catch-up paints for almost all user interactions. Mozilla says that this leads to a 10-20% improvement in response time for most user interactions making the browser feel quicker.
Other features include the reintroduction of the simplify page option when printing, the addition of the Scots locale, the address bar now provides Switch to Tab results in Private Browsing Windows, and Firefox now automatically enables High Contrast Mode when ‘Increase Contrast’ is selected on macOS.
If you’re already running Firefox, the update should download in the background and will be applied the next time you restart it. If you still don’t have Firefox you can download it from Mozilla’s website.