Not super relevant to the design, but does anyone know which browser (Chrome or Firefox) uses less memory on a Mac these days? Not talking about base footprint

Not super relevant to the design, but does anyone know which browser (Chrome or Firefox) uses less memory on a Mac these days? Not talking about base footprint, but let's say I have 25 tabs open. Chrome uses ~100MB per tab, more for long-running tabs with a lot going on like GMail. Seems totally insane to me, a website that's not a complicated web app should have a tiny memory footprint. If Firefox could significantly improve this I'd move.