Download-mozilla-firefox-quantum-85-0-2-offline-installer-gratis-2021 Apr 2026

The release, launched on February 9, 2021, was a minor update specifically focused on stability and fixing a critical startup deadlock issue (bug 1679933). As a "Quantum" version, it continued to utilize the high-speed Rust-based engine designed for performance and efficient memory management. Key Features of the Firefox 85 Series

: It is ideal for installing Firefox on multiple computers as it avoids downloading the full setup files for each machine, saving bandwidth. Where to Find it The release, launched on February 9, 2021, was

An (also known as a standalone or full installer) allows you to install the browser without an active internet connection during the setup process. launched on February 9