OneStat.com reports that the global usage share of Mozilla’s Web browsers has jumped from 2.1 pecent to 7.35 percent since May, with Firefox accounting for 4.58 percent of Mozilla’s share. According to the Web researcher, Microsoft’s Internet Explorer is down 5 percent to 88.9 percent. Meanwhile, usage of Apple’s Safari Web browser has climbed from 0.71 to 0.91 since May.