Why is Firefox so slow in Speedometer benchmark?

[Lurtz]

Here the V8 team describes Speedometer as a fairly useful tool for measuring real world website performance.

Firefox is really not competing in Speedometer however, on both my machines it only reaches about 30-40% of Chrome's numbers. The faster the cpu, the wider the gap.

Is this actually a useful benchmark to measure real website performance in Firefox, or is there something inherently wrong with Speedometer in Firefox?

[the-edmeister]

https://en.wikipedia.org/wiki/List_of_E ... pt_engines

My guess is that the "speed test" you are using is written to favor the V8 JavaScript engine that is used in Chrome. Firefox uses the SpiderMonkey JavaScript engine.

https://developer.mozilla.org/en-US/doc ... iderMonkey


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[Omega X]

I guess since everyone caught up on Octane, they need to move the goalpost again. Edge does slightly worse than the Nightly build I'm running.

[DN123ABC]

So much for "standards".