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 Chrome and Internet Explorer." The release candidate was also "perfectly" compatible with far more sites than the beta, but there are still issues with some sites because their developers are not yet testing with the new browser. The RC scores 4 out of 5 ("very good") for now. On its first day of commercial availability, Internet Explorer 9 was downloaded over 2.35 million times. Blogging his March 2011 performance tests for ZDNet, Adrian Kingsley-Hughes concluded that Chrome 10, Internet Explorer 9 (32-bit) Final Release, Opera 11.01 and Firefox 4's Release candidate were "pretty evenly matched... Microsoft has worked hard on