Firefox created by Netscape in 1998 before their acquisition by AOL. Firefox usage grew to a peak of 32% at the end of 2009, temporarily making version 3.5 the world's most popular browser. Usage then declined in competition with Google Chrome. , Firefox has 11.6% usage share as a "desktop" browser, according to StatCounter, making it the second-most popular such web browser; usage across all platforms is lower at 5.44% (and then 4th-most popular overall). Firefox is still the most popular desktop browser in Cuba (even most popular overall at 62.77%) and Eritrea with 78.3% and 91% of the market share,
Internet Explorer 9 URLs, and Application Reputation to detect untrustworthy executables—provides the best socially engineered malware blocking of any stable browser version. Internet Explorer 9 blocked 92 percent of malware with its URL-based filtering, and 100 percent with Application-based filtering enabled. Internet Explorer 8, in second place, blocked 90 percent of malware. Tied for third place were Safari 5, Chrome 10, and Firefox 4, each blocking just 13 percent. Bringing up the rear was Opera 11, blocking just 5 percent of malware. Due to technical improvements of the browser, the Internet Explorer developer team decided to change the user agent (UA) string. The