Intent to prototype & ship: Pointer Lock unadjustedMovement

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Edgar Chen

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May 13, 2026, 5:51:26 AM (4 days ago) May 13

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Summary:

Element.requestPointerLock() gains a PointerLockOptions dictionary argument with a boolean unadjustedMovement member, which allows websites to request that MouseEvent.movementX / movementY deliver raw mouse deltas that bypass OS-level pointer acceleration.

Bug to turn on by default:

https://bugzilla.mozilla.org/show_bug.cgi?id=2037802

Specification:

https://www.w3.org/TR/pointerlock/#dom-pointerlockoptions-unadjustedmovement

Standards Body:

W3C

Platform Coverage:

All platforms. Platforms that do not support unadjustedMovement (Linux and Android) reject with a NotSupportedError, per the spec.

Preference:

dom.pointer-lock.unadjusted-movement.enabled

DevTools Bug:

N/A