They are examples of AI being a category that contains (a subset of) translation technology. Which is consistent with Mozilla's use of "you can disable AI, which will also disable translation"
If you are asking about examples of AI being synonymous with machine translation: no, I don't think that was ever a thing. But I also don't think that was claimed
If you are asking about examples of AI being synonymous with machine translation: no, I don't think that was ever a thing. But I also don't think that was claimed