The last time I looked at browser benchmarks was in 2016 when Google released benchmarks to brag about its performance over Firefox and Edge. It appears Webkit has released JetStream2 to benchmark JavaScript, WebAssembly and web workers, among other things. But I can't find data showing Mozilla Firefox is ~20% slower than Chrome/Edge today.
The last time I looked at browser benchmarks was in 2016 when Google released benchmarks to brag about its performance over Firefox and Edge. It appears Webkit has released JetStream2 to benchmark JavaScript, WebAssembly and web workers, among other things. But I can't find data showing Mozilla Firefox is ~20% slower than Chrome/Edge today.