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,
WebSocket in Firefox 6, Safari 6, Google Chrome 14, Opera 12.10 and Internet Explorer 10. A detailed protocol test suite report lists the conformance of those browsers to specific protocol aspects. An older, less secure version of the protocol was implemented in Opera 11 and Safari 5, as well as the mobile version of Safari in iOS 4.2. The BlackBerry Browser in OS7 implements WebSockets. Because of vulnerabilities, it was disabled in Firefox 4 and 5, and Opera 11. To establish a WebSocket connection, the client sends a WebSocket handshake request, for which the server returns a WebSocket handshake response, as