There is a current accepted sign-off, which is used for shipping Firefox 74.
|Feb. 19, 2020
|5174 missing, 1628 obsolete, (45%)
Bug 1613801 - Don't include brand name in the window title on Mac., part 2.
Walter Leibbrandt <firstname.lastname@example.org> rev 8929708c7ac2
Bug 1613801 - Don't include brand name in the window title on Mac., part 1.
Axel Hecht <email@example.com> rev ffbed6e73f56
Francesco Lodolo accepted sign-off by Francesco Lodolo on Feb. 19, 2020