* Guest browsing still ok for Fx 25 - QA?
* A fix for landed for Nightly Fx27 (by way of backing out bug 875731), thanks mfinkle: Bug 921944 (Regression: Unable to initiate a download)
* about: home UI was uplifted to Fx 26: there is a long list (including number of tests) which probably need to be prioritized / triaged
** History and Top Sites are separate pages again
** Thumbnails in the Top Sites page