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,
Web typography SVGOpenTypeFonts. Firefox has supported SVG OpenType since Firefox 26. Linking to industry-standard "TrueType" (TTF) and "OpenType" (TTF/OTF) fonts is supported by Mozilla Firefox 3.5+, Opera 10+, Safari 3.1+, and Google Chrome 4.0+. Internet Explorer 9+ supports only those fonts with embedding permissions set to installable. The Web Open Font Format (WOFF) is essentially OpenType or TrueType with compression and additional metadata. WOFF is supported by Mozilla Firefox 3.6+, Google Chrome 5+, Opera Presto, and is supported by Internet Explorer 9 (since March 14, 2011). Support is available on Mac OS X Lion's Safari from release 5.1. Only two fonts available