Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

For systems running 64-bit Vista, the 64-bit Firefox 52 ESR indicates it requires Windows 7. Is this intended? Is there a 64-bit version for Vista?

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by James

more options

52.0 ESR 32-bit installs ok on Vista 64-bit, and self-updates ok to 52.6. Or on 32-bit XP, for that matter. But the 64-bit 52.0 ESR applied to the same Vista systems refuses to install, indicating it requires Windows 7 or later. It appears that means there's no 64-bit Firefox compatible with XP 64-bit or Vista 64-bit. Is that correct? Is it intended? Suggested alternatives?

52.0 ESR 32-bit installs ok on Vista 64-bit, and self-updates ok to 52.6. Or on 32-bit XP, for that matter. But the 64-bit 52.0 ESR applied to the same Vista systems refuses to install, indicating it requires Windows 7 or later. It appears that means there's no 64-bit Firefox compatible with XP 64-bit or Vista 64-bit. Is that correct? Is it intended? Suggested alternatives?

All Replies (2)

more options

hi, yes that's correct - win64 bit builds of firefox provided by mozilla require windows 7 or higher - https://www.mozilla.org/en-US/firefox/52.0esr/system-requirements/

more options

Ever since the Win64 Firefox builds existed on the development channels and then finally for Release starting at Firefox 42.0 they required 64-bit Windows 7 and later to run.

WinXP/Vista is barely being supported now days anyways as Firefox 52.9.0esr out on June 26 will be the last Release apart from any minor 52.9.x esr updates for security/stability fixes that will still run on WinXP/Vista.