** Vladan landed a dom storage fix that should reduce the amount of main thread SQL done by content {{bug|714964}}.
** Lots of frontend Telemetry probes are landing (see {{bug|671038}}) and already paying off as we caught a tab animation regression in {{bug|724349}}.
** Bug {{bug|723561}} - Create telemetry stopwatch helper to easily store/retrieve timestamp data
=== Firefox Mobile ===