Qutebrowser is a keyboard-focused browser with a minimal GUI. It’s based on Python, PyQt5 and QtWebKit and free software, licensed under the GPL.
It was inspired by other browsers/addons like dwb and Vimperator/Pentadactyl.
Ranked in these QuestionsQuestion Ranking
Pro Fast and light on resource usage
Pro Vim-style keyboard shortcuts and commands for rapid navigation
With suggestions/auto-complete to reduce the learning curve.
Con Steep learning curve
If you're not a vim user it will take some time to get used to the shortcuts.
As it is mainly written in Python it's startup is slower than the competition.