Some other useful resources, including how to get tabs on bottom for those of us that like our world topsy-turvy: - https://github.com/black7375/Firefox-UI-Fix

Some other useful resources, including how to get tabs on bottom for those of us that like our world topsy-turvy: - https://github.com/black7375/Firefox-UI-Fix https://github.com/black7375/Firefox-UI-Fix - a good base including different light/dark themes. See Tips for code to put tabs on bottom - https://github.com/aris-t2/customcssforfx https://github.com/aris-t2/customcssforfx - huge collection of different CSS that you can mix together for the perfectly customised UI Hoping some day someone builds a playground so it's easy to build/customise interfaces through a GUI as I find it a bit of a chore to get things tweaked exactly right! In the meantime it's worth noting you can use remote debugging[1] to live edit the interface. 1. https://www.reddit.com/r/FirefoxCSS/comments/73dvty/tutorial_how_to_create_and_livedebug_userchromecss/ https://www.reddit.com/r/FirefoxCSS/comments/73dvty/tutorial...