Somehow my Firefox Sync password is no longer what was stored in my browser.
So I tried to reset it, and was immediately told, "You've tried too many times. Try again in 15 minutes."
You should allow more than 0 tries.
Had to reinstall my machine, I am now locked out of my account after trying to reset the password as well. This is a HORRIBLE user experience. The password lockout for sync is too aggressive. Since I'm starting over with a new machine, I might as well start over with Brave. Goodbye Firefox.