64 Bit | Mozilla Firefox _verified_ Download Windows 8.1

115 Extended Support Release (ESR) is the final version available for Windows 8.1. While Mozilla originally planned to end support in early 2026, they have extended security updates for these systems until August 2026 Mozilla Support 🚀 How to Download 64-bit Firefox for Windows 8.1 You can get the correct version directly from the official Firefox download page Automatic Detection: Mozilla Download Page

The 64-bit version of Firefox is specifically optimized for modern processors and memory management. Here is what you gain: mozilla firefox download windows 8.1 64 bit