You could probably add this to Nyxt in a solid hour or two of configuration hacking. The "configuration" is just more code that gets compiled in on loading. It

You could probably add this to Nyxt in a solid hour or two of configuration hacking. The "configuration" is just more code that gets compiled in on loading. It's a complete first class citizen unlike extensions for most software which is sandboxed in a separate language and can only see certain APIs. In Nyxt, StumpWM, Emacs, and other Lisp software you can literally put bugfixes in your config, redefine existing functions, and generally do whatever the hell you want.