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
Firefox for Android browser components become outdated, increasingly insecure, and unable to properly render modern websites. As a workaround, a Google engineer suggested using the separately-installable and updateable Google Chrome or Firefox browsers. In case of Ice Cream Sandwich (4.0.x), Google stopped supporting that branch of Android with updates to its Chrome browser after Chrome 43, and move up to Android 4.1 as the oldest release supported by Google Chrome. The open-source nature of Firefox has made it possible to maintain its development for operating system versions that are past their product support lifecycle, and has resulted in Firefox having stronger security and