First attempt to integrate Oxygen KDE addon (https://addons.mozilla.org/en-US/firefox/addon/oxygen-kde/) and Hide Caption Titlebar Plus (https://addons.mozilla.org/en-US/firefox/addon/hide-caption-titlebar-plus-sma/)
Hide Caption Titlebar Plus has been limited by a new Firefox interface change since 12.0a1 version. HCTP 2.6.0 was released to mitigate this problem, but if certain HCTP settings are used, this causes Min-Max-Close button box misalignment. UPDATE: Newer versions of HCTP have been released solving the major issues covered by this userstyle, but depending on your settings it's still useful, plus it provides some extra solutions.
Hide #PanelUI-menu-button for firefox v29+, with Hide Caption Titlebar Plus: https://addons.mozilla.org/firefox/addon/hide-caption-titlebar-plus-sma/
This userstyle is designed to emulate the Mint-X gtk theme for Linux Mint when using the "Hide Caption Titlebar Plus" Firefox extension to remove the titlebar.
This is an ambiance theme for Hide Caption Titlebar Plus
This is an Orta theme for Hide Caption Titlebar Plus For the theme in the screenshot use this Orta like style
This is an Elementary theme for Hide Caption Titlebar Plus
This userstyle need Hide Caption Titlebar Plus to render correctly the border/resizer and hide the caption and the title bar and the "No border" option in KWin to hide the window decorator border.
For my sis - choose icon below. (to use with hide caption titlebar plus)
Sharp Minimal is a style that makes the Firefox4 gui and the elements extra compact, with sharp edges. It goes the best with solid and darker Personas (example http://www.getpersonas.com/en-US/persona/473) http://i54.tinypic.com/zt90cj.jpg (windowed) http://i55.tinypic.com/2euiz5j.jpg (maximized) if other type is preferred, you can hide/delete the "background-color: rgb(66,66,66) !important;" line in the code (which only makes the dark tabs appear with better contrast, but breaks the bright ones), and chose any other desired one, like the default for instance: http://i54.tinypic.com/14bnx5d.jpg Recommended to use it with Tab Mix plus and Hide Caption Titlebar Plus extensions. Unfortunately i haven't found a way to hide the (imho) ugly custom resizers in HCTP, so i took the initiative and painted them to full transparent, reduced their size in the code to match my scrollbars, then repacked the whole thing. (http://firstname.lastname@example.org