Which browser has the lowest CPU usage?
When it comes to CPU usage, Firefox is the clear winner. Mozilla claims that Firefox’s new Quantum engine uses around 30% less CPU than Chrome, nothing to sneeze at!
Which browser uses least power?
The three least energy-consuming browsers are: Vivaldi, Firefox Preview, Duck Duck Go.
Which browser is lightest on CPU?
Yes. Opera is known as one of the lightest browsers and consumes the least amount of resources in your system.