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NiLSPACE

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The old system will still be needed post-WebRender for printing at the very least.

Isn't it possible to take a frame from WebRender and print that? Having two separate systems seems like allot of unnecessary maintenance. Especially if one of those systems is only used on rare occasions like printing.

There is a wiki page about Project Quantum: https://wiki.mozilla.org/Quantum

Currently Quantum CSS (Stylo) and Quantum Render (Webrender) are both in Firefox Nightly, but they are unstable and can cause really bad performance, especially Quantum Render. They won't be done until at least Firefox 57 and some most likely later.

Quantum Compositor is in Release already I believe. It's the out of process compositor for Firefox.

Changes from Quantum Flow are continuing to be implemented into Nightly and later on Beta.

I haven't ready much about the progress around Quantum DOM, and I have no idea for which release it is targeted.

There are people who actually do that because otherwise they get an inferior version of a website even though it works perfectly fine on Firefox as well.

It heavily makes heavy use of parallelism and the GPU which increases the responsiveness. It's also uses Rust as a programming language instead of C++ which will prevent a whole category of bugs like buffer overflows and use after free.

Perhaps he means a similar thing to what they did to Microsoft by forcing them to make it possible to choose a different browser when installing Windows.