

During the extended cycle, no new features are added to Firefox ESR, with only high-risk / high-impact security vulnerabilities or major stability issues being fixed.Īs such, Firefox ESR is primarily intended at organizations like universities, governments or businesses, as well as individuals who prefer stability to features, and a non-changing user interface between releases. This article explains how to install the latest Firefox (stable but non-ESR) on Debian Stable (Buster) or Testing (Bullseye).įirefox ESR, or Extended Support Release, is an official version of Firefox that's focused on security and stability instead of the latest features. Debian Stable and Testing only have Firefox-ESR in their repositories.
