earthlng

FFprefs-diffs

listing differences in Firefox prefs

aboutconfig

testpages

user.js

Firefox privacy, security and anti-fingerprinting: a comprehensive user.js template for configuration and hardening

temporary-containers

Firefox Add-on that lets you open automatically managed disposable containers

uc.css.js

A dark indigo CSS theme for Firefox and a large collection of privileged scripts to add new buttons, menus, and behaviors and eliminate nuisances. The theme is similar to other userChrome stylesheets, but it's intended for use with an autoconfig loader like fx-autoconfig, since it uses JavaScript and Firefox's component registrar to implement its more functional features.