People have noticed that Firefox is fast again.
Over the past seven months, we’ve been rapidly replacing major parts of the engine, introducing Rust and parts of Servo to Firefox. Plus, we’ve had a browser performance strike force scouring the codebase for performance issues, both obvious and non-obvious.
We call this Project Quantum, and the first general release of the reborn Firefox Quantum comes out tomorrow.
But this doesn’t mean that our work is done. It doesn’t mean that today’s Firefox is as fast and responsive as it’s going to be.
To get faster, we needed to take advantage of the way hardware has changed over the past 10 years.
... read the whole story at hacks.mozilla.org.