Bug 977796 - [Australis] Disable subpixel AA on all labels during customize mode transition for Windows. r=jaws, a=sledru.
Bug 975552 - [Australis] Preload about:customizing like we do with about:newtab to increase transition performance. r=jaws,ttaubert, a=sledru.
Bug 975552 - [Australis] Let the leak detector know about the preloaded customization tab r=bustage, a=sledru.