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My poor 2015 MacBook Air with FireFox went full 100% CPU on this page, I think it's the gifs.

I think Factorio itself actually runs better on this laptop than that Factorio blog post does.

I have a dual-core 2015 Macbook Pro running FF too. htop showed my cpu pinned at 100%, VTDecoderXPCService was taking the lions share, there probably is something weird about the gifs.

the "gifs" all appear to be mp4 <video> elements, not actual gifs. Possibly FF is doing something weird here (such as playing videos that aren't visible), possibly it comes down to whether or not the hardware decoding can handle it or if it's falling back to CPU decoding.

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