Bug 936593 - Allow overriding active button colors. r=mfinkle
Bug 935788 - Fix Pretty Print button when attempting to prettify non-js files; r=vporof
Bug 888353 - [Metro] Open link in new tab for middle- or ctrl-click [r=rsilveira]
Bug 937200 - Don't call setDisplayPort for events in a background tab [r=jimm]
Merge fx-team to m-c on a CLOSED TREE.