Since the main Mozilla Firefox download page will detect your OS and likely show an error or an incompatible file, you must use the official Mozilla archives:
: This version was released in 2018 and no longer receives security updates. Browsing the modern web on Windows Vista is inherently risky because both the OS and the browser have unpatched vulnerabilities. download mozilla firefox for windows vista 32-bit
: While Firefox 52.9.0 ESR supports TLS 1.1 and 1.2, many modern websites now require TLS 1.3, which may cause connection errors on some secure sites. Since the main Mozilla Firefox download page will