Fwiw, as critical as I am of Mozilla in recent years, they (along with the Chrome team) have been pretty solid on this whole debacle over the last week. Apple has been far from the only target of their collective shade-throwing.
Apple should publish a hotfix now. Work on a better solution in the long-term. They just don't care about security for developers is my take (it's like a niche group for them?)
Mozilla or not does not matter here.