>The Big Slowdown when you had more than 5 tabs open, the accumulation of dead memory, needing me to restart the damn thing every couple of hours or so. The slow Javascript.
Firefox hasn’t been the same Firefox ever since Mozzila replaced the rendering engine with the new Rust-based Servo (https://servo.org/). It’s fast and amazing and handles memory as well (and on my Mac, better) than Chrome/ium.
I think the GP’s point is that Firefox still uses Gecko and some parts of Servo, which is true. Servo is not a complete engine yet and it’s not fully merged into Firefox yet.
Firefox hasn’t been the same Firefox ever since Mozzila replaced the rendering engine with the new Rust-based Servo (https://servo.org/). It’s fast and amazing and handles memory as well (and on my Mac, better) than Chrome/ium.