None of them are a guarantee for it to survive but diversity is important and hard to see a second option disappearing just like how BSD are surviving. Imagine

None of them are a guarantee for it to survive but diversity is important and hard to see a second option disappearing just like how BSD are surviving. Imagine what kind of HN thread pops up if Firefox is abandoned by Mozilla. Also Firefox is a single licensed product that is MPL, and for anyone who wants it that way commercially may support it.