I want a web browser with small CPU usage for Windows 7

Ok so my request is pretty simple.
I have used Google Chrome until I realized it is not that great, and it can damage my PC.
It keeps freezing and on top of this, it uses a large amount of memory.
So I want TechyV support to tell me what is the best web browser with small CPU usage.
I am using Windows 7 Ultimate 64bit.
Any suggestion would be appreciated.
