Bug 1019572 - Disable test_permission_gum_remember.html on opt builds as well. a=test-only
Bug 1007824 - Use signal trampoline for profiler signal handler. r=BenWa, r=snorp, r=Ms2ger, a=sledru
Bug 1038997 - Backout newtab changes including layout and styling changes for Fx32. r=adw, a=sylvestre

Revert bug 980014, bug 978338, bug 991210; fix up search form
Bug 1039881 - Use an empty directory tiles data source pref before uplift. r=adw, a=sledru

Update tests to use a dummy pref, so it changes no matter what's the default.
Bug 1034593 - Prevent clips with huge extents to be passed to a cairo context from CanvasRenderingContext2D. r=jrmuizel, a=sledru
Bug 1036581 - Add telemetry probes to social buttons and sidebar. r=dolske, a=sledru