Changes

[http://dbaron.org/mozilla/leak-monitor/ Leak Monitor] is an extension that detects (when closing windows) the primary ways in which JavaScript code can cause leaks that are not bugs in the native code core. An example of such a bug is no longer maintained and would be registering (in each window) a JavaScript-implemented observer with the global observer service and never removing the observers, leaving JavaScript code running in the context of each window registered as an observer until the user quits the browser. When a leak is detected, the extension presents the user (or application/extension developer!) with a dialog with information about the leaked objects. (The alerts can also be triggered by bugs in the core code. See the [http://dbaron.org/mozilla/leak-monitor/ extension's homepage] for more detailstake significant work to get working again.)