userstyles.org - App themes and skins

Thunderbird - Chris' CLEAN ADAPTION no1

A very cleaned-up style for the User Interface only. Inspired by Material design, Outlook and Postbox. Affects the main-interface and the calendar/lightning add-on. Detailed description and comments inside the CSS. Please read the additional information here, or the one inside the code. Updated (1) 15.Dec.2015 - force white titlebar also with cuxtom visual styles.

Updated: Dec 15, 2015 Installs This Week: 17 Average Rating: Good
about:newtab - dark

A nice, simple, dark/black Firefox new tab page (for Firefox 31 onwards).

Updated: Sep 26, 2015 Installs This Week: 20 Average Rating: N/A
Planet Firefox in the stars

Firefox home page with a space background and search area on the top.

Updated: Apr 29, 2015 Installs This Week: 20 Average Rating: N/A
Windows 10 Dark Firefox

Fix the userChrome (remove white in title bar) in Firefox for Windows10.

Updated: Sep 13, 2015 Installs This Week: 19 Average Rating: N/A
Thunderbird Dark

Dark theme for Thunderbirds main UI. If you have any issues with this style, please open a ticket at https://github.com/NiklasGollenstede/stylish

Updated: Oct 12, 2015 Installs This Week: 19 Average Rating: OK
Simple White theme/Windows 10 Colored Titlebar

This style is designed to be used with the Simple White X theme (https://addons.mozilla.org/en-US/firefox/addon/simplewhitex/). It gives you a colored Titlebar on Windows 10 if you have the option to show accent color on start menu/taskbar/action center/titlebar enabled. Note: Due to how the Min/Max/Close buttons are drawn this will probably only work properly with 100% DPI

Updated: Nov 21, 2016 Installs This Week: 19 Average Rating: N/A
Firefox Square Tabs

Just square tabs...

Updated: Sep 2, 2016 Installs This Week: 19 Average Rating: N/A
Dark Flat Minimal Firefox

This is a style which effects the skin of firefox. It's dark, flat, minimal and sexy. You need it!

Updated: Jan 7, 2016 Installs This Week: 14 Average Rating: Good