Google announced this month that it would continue to support Chrome on Windows XP after Microsoft would end the support for the operating system on April 8, 2014. Now when Mozilla has also said that it intends to continue to support the OS after Microsoft ends its support for XP.
When Neowin asked Mozilla if it has any plans to end Firefox's support for XP, Johnathan Nightingale, VP of Firefox at Mozilla stated, "We have no plans to discontinue support for our XP users."