I don't use add-ons or plugins. I just want a secure browser that - 1. doesn't have a memory footprint the size of Texas. 2. doesn't have memory leaks that eat

I don't use add-ons or plugins. I just want a secure browser that - 1. doesn't have a memory footprint the size of Texas. 2. doesn't have memory leaks that eat all my remaining RAM. And it would be nice to have it within 20 years.