Completely renewed performance testing tools in Firefox 98

The article published on Mozilla Hacks discusses the revamped performance tools available in Firefox DevTools. These tools have been updated to provide developers with improved methods for analyzing the performance of their web applications. Key features include more detailed measurements of execution time and user interactions, which are essential for understanding how web applications perform under various conditions. Additionally, there are advanced chart analysis capabilities that help identify potential bottlenecks in the code. The article also highlights event recording tools that make it easier to trace performance issues back to the point of page load, which is crucial for diagnosis. Overall, the focus is on delivering essential information to developers in an accessible manner, thus enhancing the capability to optimize web applications effectively.