* Useful Firefox Release Schedule link: [https://www.google.com/calendar/embed?src=bW96aWxsYS5jb21fZGJxODRhbnI5aTh0Y25taGFiYXRzdHY1Y29AZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ Releases Scheduling]
** Next scheduled Merge Day: January 21st, 2019.
=== Extensions and Plugins Compatibility Tracking ===