For those curious about the direction of Mozilla Firefox web browser performance over the past year and a half, here are web browser benchmarks for every Firefox release from Firefox 120 in November 2023 through the newest Firefox 140 stable and Firefox 140 beta releases from a few days ago. Every major Firefox release was benchmarked on the same Ubuntu Linux system with AMD Ryzen 9 9950X for evaluating the performance and memory usage of this open-source web browser...