History of Firefox updates automatically update Firefox to the latest version without notifying the user, a feature that the web browsers Google Chrome and Internet Explorer 8 and above have already implemented, although the user is able to disable that function. Mozilla improved regular startup time for Windows users. Firefox 16 was released on October 9, 2012. Plans for this version called for fixing of bugs still outstanding involving support of new features in Mac OS X Lion, improvements to startup speed when a user wants to restore a previous session, and support for viewing PDF files inline without a plugin. Opus audio
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