Firefox increasing rate since Firefox 1.0 was released on November 9, 2004, and Firefox had already been downloaded over one billion times. This number does not include downloads using software updates or those from third-party websites. They do not represent a user count, as one download may be installed on many machines, one person may download the software multiple times, or the software may be obtained from a third-party. In July 2010, IBM asked all employees (about 400,000) to use Firefox as their default browser. Firefox was the second-most used web browser until November 2011, when Google Chrome surpassed it. According
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