There’s likely zero bugs, but Firefox has more ways to block ads and trackers from affecting you, which is likely to real reason they don’t want it being used.
There are quite a lot of quirks with how browser (or rather rendering engines) interpret CSS, and in quite a few places the spec is ambiguous. So there is no “correct” way of implementing it.
But, this is either just them being lazy or bad mangement.
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There’s likely zero bugs, but Firefox has more ways to block ads and trackers from affecting you, which is likely to real reason they don’t want it being used.
There are quite a lot of quirks with how browser (or rather rendering engines) interpret CSS, and in quite a few places the spec is ambiguous. So there is no “correct” way of implementing it.
But, this is either just them being lazy or bad mangement.
Do you have an example of a quirk where Chrome and Firefox treat something in the spec differently? I haven’t seen that in a while.