JavaScript to the operating system's API with superuser privileges. These flaws have affected major browsers including Firefox, Internet Explorer, and Safari. Plugins, such as video players, Adobe Flash, and the wide range of ActiveX controls enabled by default in Microsoft Internet Explorer, may also have flaws exploitable via JavaScript (such flaws have been exploited in the past). In Windows Vista, Microsoft has attempted to contain the risks of bugs such as buffer overflows by running the Internet Explorer process with limited privileges. Google Chrome similarly confines its page renderers to their own "sandbox". Web browsers are capable of running JavaScript outside
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