Portable Firefox 52 Apr 2026

If you absolutely need legacy extensions, consider running or Basilisk instead – they offer similar old-extension support but with some ongoing security patches.

✅ If you’re stuck with Windows XP, Vista, or 32-bit Linux without updates, FF52 is one of the last modern-ish browsers that runs there. portable firefox 52

✅ No installation, leaves no registry traces, can be carried on a USB stick. Uses far less RAM than modern browsers (helpful on old hardware). If you absolutely need legacy extensions, consider running