Bug 907404 - Disable the in-product whatsnew page, so that manual upgrades are consistent with updater upgrades wrt showing the whatsnew page (updater upgrades disable whatsnew via snippets). r=dolske, a=asa, a=akeybl
Bug 907727 - Make sure to properly forward gets to the expando object for DOM proxies. r=peterv, a=abillings
Bug 907350 - Set cache-control: no-store to avoid browser_thumbnails_background orange. r=adw, a=test-only
Bug 881634 - Only use a single snapshot with DrawTargetSkia. r=Bas a=bajaj