I was using Firefox Nightly occasionally which already had the controls on the bottom so the UI jump wasn't hugh issue for me, although I still hit my muscle me

I was using Firefox Nightly occasionally which already had the controls on the bottom so the UI jump wasn't hugh issue for me, although I still hit my muscle memory habits. Unfortunately the upgrade also cleared all previously saved form data for me. I know it is cache stuff which could be gone at any time, but still a little glitch in the experience.