[sniglom]

Sadly, I agree, don't think I noticed anything special when this happened. I'm on older hardware though; MBP 2014, i5 2.6GHz, 16GB DDR3.

Still, I applaud the effort to make Firefox faster on MacOS. I'm happy for every performance gain I can get, even if I don't notice it straight away. A few more minutes of battery life or a bit less fan noise can make such a difference.