Comment on Show HN: A syntax-diagram generator for rust's macro_rules()parentComments−LawnGnome8yWebAssembly is explicitly disabled on the ESR version of Firefox 52, per https://www.caniuse.com/#search=webassembly, so that would explain that.
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WebAssembly is explicitly disabled on the ESR version of Firefox 52, per https://www.caniuse.com/#search=webassembly, so that would explain that.