This announcement has some links to articles with more details: https://hacks.mozilla.org/2024/03/improving-performance-in-firefox-and-across-the-web-with-speed

This announcement has some links to articles with more details: https://hacks.mozilla.org/2024/03/improving-performance-in-firefox-and-across-the-web-with-speedometer-3/ https://hacks.mozilla.org/2024/03/improving-performance-in-f... The SpiderMonkey devs also post newsletters every few months detailing all the recent improvements they've made: https://spidermonkey.dev/ https://spidermonkey.dev/