Work has just begun
Google, Apple and Mozilla have agreed to jointly develop a new tool for testing the speed of browsers. The project is called Speedometer 3 and it should help evaluate the performance of browsers from different perspectives.
The new system should mimic the usual actions of the user, which will allow you to accurately assess the quality of the browser. At the moment, the project has just started, so far it is not recommended to use it for tests. After all, among other things, Speedometer 3 is still unstable.
Judging by the description on GitHub , the new test suite will be able to test the performance of browser engines, WebKit, Quantum and Blink, as well as Google V8 JS engines and Mozilla SpiderMonkey.
It is not yet reported when a workable version will be released, but the developers claim that having such a test will improve all browsers in general. Note that Speedometer version 2.0 was released back in 2018, it was developed by the creators of Safari. The current version for today is 2.1.
