[pcx]

Bottom navigation bar works great for me because it's easier to use with my thumb.

I think Mozilla had to choose to either wait a long time to get full extension support and miss the train, or release early. I am also unhappy with not having the extensions I use, but I think this was the right choice. They plan to support the whole extension API eventually. Also aren't they the only ones who support extensions on Mobile?

[mcherm]

No, Mozilla did not have to choose. They could have offered both as options! They could have allowed the end consumer to control when to upgrade (some would go quickly, some would wait until their key extensions work available). I'll admit, the majority of people will upgrade only when it's the default.

[fomine3]

Offer both as options takes costs for development. Allow users to keep old version is insecure.