🦊 I respect proton UI and aim to improve it.

A GNOME👣 theme for Firefox🔥

A Material Design-inspired userChrome.css theme for Firefox

Custom CSS tweaks for Firefox

🦊 A Userstyle theme for Firefox minimalist and Keyboard centered.

An opinionated set of configurations for firefox.

A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox

A responsive One-Line CSS Theme for Firefox.

userChromeJS / autoconfig.js and extensions

Flexible theme for manual customization.

Firefox Proton - Blur Mod / For dark theme lovers / More compact / Modular

A collection site of Firefox userchrome themes, mostly from FirefoxCSS Reddit community.

This theme for Firefox supports all the window buttons layouts from Tweaks and it blends into the elementary OS user interface.

A customizable full dark theme for Firefox. You can also add extra functions using the CSS and JS files here apart from the theme.

🦊 A firefox config that has rounded tabs and a url bar that can disappear when not selected on. It works with any theme.

Sun Valley + MDL2 Theme for Firefox

A dark themed startpage and dark themes for Firefox and Linux inspired by Material design and Adapta.

Hide contextmenu items in Firefox Photon

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 to implement its more functional features.

Sweet_Pop! Beautify, Customize Firefox. Minimalist animated oneliner theme for Firefox perfectly matching Sweet Dark.