: Provides higher fidelity for pausing execution at specific locations within a single line of code.
Report: Firefox Developer Edition 67 Firefox Developer Edition 67, released in early 2019, introduced significant structural changes and performance-focused features designed to enhance both the development workflow and general browsing stability. Firefox Developer Edition 67
: This version marked the gradual release of WebRender , a GPU-based 2D rendering engine written in Rust. It shifts page rendering from the CPU to the GPU, making the browsing experience significantly smoother. : Provides higher fidelity for pausing execution at
: To speed up page loads for sites like Amazon and Instagram (reported by Mozilla to be 40–80% faster), Firefox 67 began deprioritizing non-essential features and delaying setTimeout until after the page starts up. released in early 2019