Add Firefox versions for api.DeviceMotionEventAcceleration.secure_context_required (#13017)
Add Firefox versions for api.DeviceMotionEventAcceleration.secure_context_required (#13017)

This PR adds real values for Firefox and Firefox Android for the `secure_context_required` member of the `DeviceMotionEventAcceleration` API.  There's no indication in Firefox's IDL (https://searchfox.org/mozilla-central/source/dom/webidl/DeviceMotionEvent.webidl) that the `DeviceMotionEvent` interface requires a secure context.
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data