Security updates for XP and Vista will continue until September 2017, although new features will no longer be available. Mid-2017, the last support date is announced based on the number of users of this browser on Windows XP and Vista.
Switch to another protected browser?
Sorry, no. Most browsers (Google Chrome, Microsoft IE) have stopped supporting Windows XP and Vista. If you cannot update the OS, you will still receive security updates until September 2017.
Can I continue browsing safely with Firefox?
In March 2017, if you use Firefox on XP or Vista, you will automatically be updated to Extended Support Release. You will continue to receive security updates but there will be no new or updated features.
How to get the latest features of Firefox?
Firefox for business users when will stop support?
The end of support for Windows XP and Vista with Firefox business also took place in September.
When does Firefox stop supporting Firefox Nightly and Aurora on Windows XP and Vista?
Support on XP and Vista with Firefox users Nightly and Aurora has stopped. Consider switching to another version or upgrading the Windows OS that Microsoft still supports.