: If you are looking for compatible versions for older macOS, you can find them on MacUpdate .
: Many Linux distributions maintain ESR versions. On Debian or Ubuntu-based systems, you may be able to find older versions in community-maintained PPAs or by manually downloading the Linux tarball. Why Choose Version 78? download firefox esr 78
: For the most secure and direct access, download versions like 78.15.0esr (the final release of this cycle) from the Mozilla Release Directory . : If you are looking for compatible versions
While the current version of Firefox has advanced significantly, you can still find the specific Firefox ESR 78.x binaries through official and verified archives: Why Choose Version 78
Firefox ESR 78 is primarily used today for its specific compatibility profile:
Firefox ESR 78.15.0, See All New Features, Updates and Fixes