When comparing Qutebrowser vs Falkon, the Slant community recommends Falkon for most people. In the question“What are the best desktop web browsers?” Falkon is ranked 8th while Qutebrowser is ranked 22nd.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Vim-style keyboard shortcuts and commands for rapid navigation
With suggestions/auto-complete to reduce the learning curve.
Pro Fast and light on resource usage
Pro Highly customizable
And quite easy to configure. You can even write your own config.
Pro Great for Privacy
Makes no unexpected network requests by default, unlike most other browsers (Chrome, Chromium, Brave, Firefox, etc).
Pro Userscripts
Call custom scripts on web pages or links (hinting mode).
You can use this for downloading of videos (youtube-dl, adfree), saving web pages as pdf or adding news sources to your RSS reader (newsboat).
Pro Developed by KDE
Pro Lightweight
Pro Free and Open Source
GPLv3 license.
Cons
Con Steep learning curve
If you're not a vim user, it will take some time to get used to the shortcuts.
Con Slow
As it is mainly written in Python, it's startup is slower than the competition.
Con Requires additional support and plugins for video playback
Con Software rendering only with Nouveau Drivers
Con Now under the KDE umbrella
Qupzilla is now discontinued and renamed to Falkon. It will also now be a part of KDE and will probably need more dependencies like kde-frameworks in the future.
Con Weak multimedia support
It has some issues with multimedia content eg. Non-playing videos on webpages.
Con Bookmark management not the strongest part
It often requires quite a lot of clicks to add and remove bookmarks.
Con Linux-only
Con Nobody uses it
