The Pointer Lock API has been unprefixed as the spec is now considered stable. This includes the pointerLockElement property, the requestPointerLock and exitPointerLock methods, as well as the pointerlockchange and pointerlockerror events.
At the same time, the
moz-prefixed API is disabled by default without a transition period. Given that Google Chrome has already removed the
webkit-prefixed API support, Mozilla developers are not expecting any compatibility issues.