[julienwaj]

Do you see anything (errors or something else) in the web console?

[julienwaj]

Please file a bug there if necessary => https://github.com/WebKit/Speedometer/issues/new :-)

[dist-epoch]

I also got Infinity, on Firefox 123.0.1, with a bunch of privacy extensions.

There is only one warning in the Console: Ignoring ‘preventDefault()’ call on event of type ‘wheel’ from a listener registered as ‘passive’. react-dom.production.min.js:29:112