Firefox on macOS is poor performance.
1. Highly memory usage
2. Webpage load slower than Safari
3. Battery drain faster
4. lag a lot mean not smooth. scrolling page up and down lag a lot. it annoys me a lot
5. Firefox need to improve the performance on macOS make. lot smoother and less memory footprint.
Overall performance is poor. even web benchmark like Speeddomer 2.1 is lower.
Firefox only cares about privacy... well most user cares about speed and performance which means less memory use and smoother experience... It's not good as Safari