If you have the time there is a nice talk about WebRender: ▶ this video Here is another great talk: [link] At ~25:30 he'll also talk a bit about Quantum. In a nutshell WebRender is used to send a web page to the GPU which will paint all divs, borders, shadows, images etc. Currently WebRender is the only component I'm aware of that is inside Firefox Nightly. It's still behind a config though.
in “Mozilla and Microsoft are rebuilding their browsers’ foundations” · View on HN