Is Nightly the only x64 build of firefox?

anyone have another FFox x64, non-Nightly?
I like Nightly a lot but just wanted to try an 'official' x64 if exists.
I cannot determine that in short order looking through mozilla.org.... it appears on surface the answer is "Nightly"

By looking around, it seems so. I read about five websites and it seems that Nightly is the only x64 version.

Is there an x64/64-bit version of Firefox? | ZDNet

thx.

I use PaleMoon @ .org. It is gecko-based. While Waterfox stays more or less true to Firefox, PaleMoon has recently diverged from Firefox.

its always a good day when I learn something new; and I just did!

+1 PaleMoon, very fast and stable, all my extensions work well.