A compact, minimalist and complete theme for Firefox (Windows 10). Several customization options, including a special lightweight theme. See notes.
Make Firefox look like Microsoft's new Edge browser, in Dark mode including sliding (hidden) bookmark bar and context menus.
Change Firefox to a more minimalist with a flat style. This style customize the tabs and nav-bar mainly.
A darker version of the firefox start page made to match with the FT DeepDark 9.4.7 theme.
A more system native theme for Firefox 29 and above, similar to the discontinued add-on GTK+ Native, and somewhat like GTK Native for Firefox (disable Australis). Say goodbye to Australis, and welcome back to tabs on the bottom, superior OS integration with natively themed toolbars, and system native icons. Just like the good old days of Firefox 3.6. Linux GTK+ Native fully supports lightweight themes/Personas, too, so if you like those, no problem. Suggestions? Feedback? Comments? Please let me know! This is a work in progress, and I will do my best to respond to you. As this is a Linux theme, there are no promises of what it will look like on Windows or macOS/OS X. Settings There are some overrides and workarounds in the settings in case something looks wrong with your particular theme. The default values should be good enough for most people.
Styles Firefox to look like Safari 9 from OS X Yosemite and above. In addition to the basic Safari layout, many of the main icons and animations are reproduced using embedded SVG and CSS transitions. Additionally, under OS X 10.11+, the San Francisco typeface is used in more locations than stock Firefox. ***This style was designed for Mac OS X users and currently does not work properly under Windows, Linux, etc*** Designed for Firefox 51.
A bit like Gmail/Outlook look&feel, based on chrissi4u's 'CLEAN ADAPTION no1' designed for vertical message view. Note that you will have to adjust the width of the panes for the message list to display correctly AND you should arrange the columns in the following order: STARRED, ATTACHMENTS, SUBJECT, SENDER, DATE, SIZE. Or you can experiment with those. Not guaranteed to work with every window manager.
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.
Remove the top line added in Firefox 43+ (site - Visit, text - Search with...) from the address bar autocomplete drop-down, reduce size of Firefox 48+ dropdown or use an older-style two-line layout or Firefox 2 Oldbar layout, keep the dropmarker displayed even when not hovering the address bar. URLbar AKA Location Bar AKA Awesomebar To restore a two-line drop-down in Firefox 48+, see "Drop-down Style" choice (2) below. For Oldbar fixed width URL-title layout, see choice (3).