Firefox support to end for OS X 10.6, 10.7, 10.8
Mozilla has announced to end Firefox support for OS X 10.6 Snow Leopard, OS X 10.7 Lion and OS X 10.8 Mountain Lion in August 2016. Mac users with these operating systems will stop receiving Firefox updates and security patches after August. Mozilla noted that “all three of these versions are no longer supported by Apple” and suggested users to upgrade their computers.