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@summerwind
Last active April 27, 2016 05:27
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FirstPaintTime for Firefox
var firstPaint = 0, firstPaintTime, paint;
function paintHandler() {
paint = window.performance.now()
if (firstPaint === 0) {
firstPaint = paint;
firstPaintTime = firstPaint + window.performance.timing.navigationStart;
window.performance.timing.firstPaint = firstPaint;
window.performance.timing.firstPaintTime = firstPaintTime;
}
};
window.addEventListener("MozAfterPaint", paintHandler, false);
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