I'm about to land the fix, then we can start uplifting. The impact of the problem is limited because the use-cases where you must open multiple consecutive new tab pages are not many... And in any case important things will work, it's just the preloading that is broken so every other new tab page may take a bit longer. And of course the animation is not smooth.
Bug 1893568 Comment 23 Edit History
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I'm about to land the fix, then we can start uplifting. The impact of the problem is limited because the use-cases where you must open multiple consecutive new tab pages are not many... And in any case important things will work, it's just the preloading that is broken so every other consecutive new tab page may take a bit longer. And of course the animation is not smooth.