How To Download Fix Firefox 78 For Mac May 2026

Firefox 78 is the final major release that supports several legacy macOS versions. Specifically, users on these systems are automatically migrated to the to ensure they receive the last possible security updates for their hardware. Compatibility: Essential for macOS 10.9, 10.10, and 10.11.

Optimized for older hardware that cannot run newer macOS versions like 10.15 or later. Step-by-Step Download and Installation Firefox 78.0, See All New Features, Updates and Fixes how to download firefox 78 for mac

To download Firefox 78 for Mac, you must access the , as this version is no longer the default on the main download page. This specific version is primarily needed for users of older Apple operating systems, such as OS X 10.9 (Mavericks) , 10.10 (Yosemite) , and 10.11 (El Capitan) , which are not supported by modern Firefox releases. Why You Might Need Firefox 78 Firefox 78 is the final major release that