Internet Explorer 10 for the next version, Michael Muchmore of "PC Magazine" tested Platform Preview 1's performance and HTML5 support with both Microsoft's and third parties' test suites. In his test, Platform Preview 1 performed better than Internet Explorer 9 but not always better than the competing web browsers. On September 13, 2011, Microsoft released the developer preview of Windows 8 to general public, which came with Internet Explorer Developer Preview (the first full browser incarnation of Internet Explorer 10). Although Internet Explorer is the last major web browser – among Mozilla Firefox, Google Chrome, Opera, and Safari – to support spell checking,
Local shared object store saved games. The resulting support requests cannot be solved favorably for Mozilla Firefox users without changes to the browser, because of the introduced equivalence between HTTP and flash cookies. Currently, the workaround in use is to either configure the browser to never clear history data and cookies, or to revert the part of the changes affecting this use case, using third-party patches. As for the behavior in browser's privacy mode, Adobe Flash Player 10.1, released on June 10, 2010, supports the privacy modes of Internet Explorer, Mozilla Firefox, Google Chrome, and Safari. Local shared objects created in privacy are