As of today, Firefox desktop is the first major browser to become available in the Windows Store for Windows 10 and Windows 11 users. Previously, if you were on Windows and wanted to use Firefox, you had to download it from the internet and go through a clunky process from Microsoft. Now that Microsoft has changed its Store policies, choosing Firefox as your desktop browser is even more seamless – and it comes with all the latest Firefox features.
Source: LXer – Firefox: the first major browser to be available in the Windows Store