I use FF on macOS and Linux; a bit on gaming Windows machine as well. On macOS it's about the same as Chrome, on Linux Chrome is comically horrible, even 1080p

I use FF on macOS and Linux; a bit on gaming Windows machine as well. On macOS it's about the same as Chrome, on Linux Chrome is comically horrible, even 1080p YouTube videos stutter (using GPU acceleration). Developing using Chrome under Linux (Ubuntu) was making everything super slow, e.g. debugging some JavaScript or GWT code was reducing performance of web app comparing to FF like 5x, making it unbearable.