While the web (besides time machines) is styled much nicer than ever, this does not always mean, it’s your style, nor that user experience is much better for you.
In my spare time, I have created some (hopefully) handy scripts and styles:
A slimmed down StackExchange
To get rid of the distracting side bar on some of the StackExchange sites, I have created the StackWatchers user style. This also improves the reading experience on narrow windows.
Better UX with NxFilter
To have a better visual distinction for blocked requests by the DNS filtering tool NxFilter, I have created NxFilterColorizer, a user script that colorizes the table row depending on the block indicator text. It also applies a CSS class that allows further styling with a user style.
Find the keyboard focus
Ever got lost in a large input form? FocusFinder comes to the rescue. This is a simple user style, that globally highlights the currently focused or hovered input field or action item. This helps visually navigating and observing the structure of a website.
Update (10.7.2020): A user script that adds clickable links to HTML headers is now available as Firefox Extension “Flink” in the Mozilla Add-On store.