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.
As it is mainly written in Python it's startup is slower than the competition.
Con Software rendering only with Nouveau Drivers
Con Steep learning curve
If you're not a vim user it will take some time to get used to the shortcuts.