Bug 1056884 - Implement special expanded Rocketbar state for browser start page
Bug 1051850 - In non-default locale scenario, delay MO init until l10n is ready
Merge pull request #23279 from zbraniecki/1051850-delay-MO-init-until-ready-for-non-default-locales

Bug 1051850 - In non-default locale scenario, delay MO init until l10n is ready. r=stas
Merge pull request #23281 from benfrancis/1056884

Bug 1056884 - Implement special expanded Rocketbar state for browser start page r=kgrandon