Mozilla's Firefox browser cut significantly into Microsoft's market share of web browsers in August, data from Net Applications shows. Its increase to 22.98 percent of the market wasn't an absolute high but resulted in Internet Explorer reaching an all-time low of 66.97 percent, a sharp fall from 67.68 percent just a month earlier. Other browsers also made inroads, as Google Chrome climbed to 2.84 percent (fourth place) and Opera rose slightly to 2.04 percent (fifth place).