>Gecko and Webkit have also implemented most of the same architectural features described in these blog posts, and in some cases even added them before Chromium

>Gecko and Webkit have also implemented most of the same architectural features described in these blog posts, and in some cases even added them before Chromium. That's why all this threaded rendering stuff sounded familiar. Mozilla putting massively-parallel Servo features into Firefox is already a few years old: https://en.wikipedia.org/wiki/Gecko_(software)#Components https://en.wikipedia.org/wiki/Gecko_(software)#Components