Mozilla’s bold move to make Firefox 64-bit only is shaking things up for users, especially those on older 32-bit systems like Linux. Starting with Firefox 145 in November 2025, 32-bit support will end, pushing users toward faster, more secure 64-bit browsing. But what does this mean for you? From better performance to enhanced security, this shift is all about keeping Firefox cutting-edge. If you’re wondering whether it’s time to upgrade your system or stick with workarounds, our in-depth guide breaks down everything you need to know about the Firefox Goes 64-bit Only transition.