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
Internet Explorer issue was released the following day with the Security Update for Internet Explorer KB960714, on Microsoft Windows Update. In 2011, a report by Accuvant, funded by Google, rated the security (based on sandboxing) of Internet Explorer worse than Google Chrome but better than Mozilla Firefox. A more recent browser security white paper comparing Google Chrome, Microsoft Edge, and Internet Explorer 11 by X41 D-Sec in 2017 came to similar conclusions, also based on sandboxing and support of legacy web technologies. Internet Explorer has been subjected to many security vulnerabilities and concerns: much of the spyware, adware, and computer viruses across