New figures from web analytics firm OneStat show a significant rise in Mozilla Firefox’s popularity in the United States. The browser now holds a usage share of 15.82% in the U.S., OneStat says, a sizeable jump over January’s figure of 12.55%. This gain largely occurred at the expense of Microsoft’s Internet Explorer, which has now sunk below the 80% mark in the U.S. with a usage share of 79.78%.

New figures from web analytics firm OneStat show a significant rise in Mozilla Firefox’s popularity in the United States. The browser now holds a usage share of 15.82% in the U.S., OneStat says, a sizeable jump over January’s figure of 12.55%. This gain largely occurred at the expense of Microsoft’s Internet Explorer, which has now sunk below the 80% mark in the U.S. with a usage share of 79.78%.

Despite its strides in the U.S., Firefox’s global presence is less impressive. Firefox’s worldwide usage share is 12.93%, only 1.7% higher than in January and up 4.24% from April 2005. That’s not to say users outside the U.S. are snubbing the browser; Germany, for instance, has a massive 39.02% usage share for Firefox, and 24.23% of users in Australia tap the browser.