When comparing Firefox Nightly vs Qutebrowser, the Slant community recommends Qutebrowser for most people. In the question“What are the best desktop web browsers?” Qutebrowser is ranked 5th while Firefox Nightly is ranked 31st.
Ranked in these QuestionsQuestion Ranking
Pro Blazing fast
Short load times. Quick tab switching. Fast rendering.
Pro Access to new features
Nightly comes after beta which means you get access to more features.
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.
Pro Highly customizable
And quite easy to configure. You can even write your own config.
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).
Con Buggy; performance issues and crashes
Because you're accessing new Firefox features, bugs and crashing comes. Firefox Nightly is meant for developers and it's for PCs that have low chance of getting attacked. If Firefox is for you, go for the normal one or beta at least. If you use Nightly, checking updates regularly is recommended.
Con Not intended for general use
This browser was made for testing purposes for future versions of Firefox, and it can easily crash. Most people should use the stable release of Firefox.
Con Poor adblock in comparision to ublock origin
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.