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= bugzilla.mozilla.org and Performance =
One change in the pipeline which should net client-side benefits is the upgrade of our core javascript library - YUI - from version 2 to version 3. YUI3 footprint on the browser is significantly less when compared with YUI2, with a strong focus on lazy-loading of libraries. Yahoo are performing the work for us here, in {{bug|453268}}.
== What isn't the problem? ==
* static assets (we set cache headers correctly)
* html layout (while oldschool, this isn't where the performance pain points are right now)
* hardware infrastructure (the webheads have ample grunt and ram)
