These types of things were happening years ago when Mozilla engineering started on a program of rapid rollout of patches, as they are doing now, only a very few dev teams can do a rapid rollout program like this without post patch break fixes escalating in number. Last time this happen, Mozilla dev's threw the 3rd party dev partners under the bus and the 3rd party dev's migrated their focus to chrome and never came back, that's why you don't see the same offering for both browsers.
