I'm on Fennec F-Droid which already had it for a while. From my initial experience, this is less ergonomic because I now have to stretch my thumb across the screen to get to some of the options, whereas the old menu kept all the options closer to the right side of the screen where I could more easily reach one handed without shifting my hand.

god i hate this... the current ui is almost perfect :/

Used it for a while with Nightly, it is such an improvement over the old UI/UX.

What a friggin’ downgrade.

The mobile version is a joke to begin with, but they’re able to make it worse with every update.

so much better

I loathe this new layout. It hides my extensions which makes them less useful. And, it ruined the address bar. I never thought I'd have to leave Firefox, but they're doing everything they can to make it worse to use.

I really like this new design too. Looks much more up to date and its easier to find the buttons