syntax highlighing, and dark theme makes it really awesome; emacs key bindings did not work well with firefox's defaults eg. ctrl+n opens new window instead of going down to the next line

Pretty good but there needs to be an option to open it in a tab instead of only a new window. Makes it far more useless for my needs.

This extension is excellent works well on my computer because it consumes few resources and is very practical I like 5 stars thanks Sevina