Firefox 52.0 Esr Fix Download For Mac May 2026

Because this is a legacy version, it is no longer available on the main Firefox homepage. It must be retrieved from the Mozilla FTP Archive .

Look for the file named Firefox 52.0esr.dmg (approximately 78MB). firefox 52.0 esr download for mac

When you first open it, macOS may ask for confirmation since it is an older app from the internet. Go to System Preferences > Security & Privacy to allow it if necessary. Important Security Considerations Using Firefox 52.0 ESR today comes with significant risks: Because this is a legacy version, it is