Hides bookmarks bar by default for more browsing space. Hover cursor over the navbar to slide out the bookmarks bar. Alternatively, press Alt key to show both traditional menu bar along with the bookmarks bar. Mac version link: Firefox Sliding Bookmarks Bar [Mac]
Very Firefox, such transparent. Wow. Works well on both light and dark backgrounds! (Windows Vista or Windows 7 required) UPDATED to work on new versions of Firefox!
Modern tabs for Firefox Australis theme. Gives Firefox a native Windows application look. Active tab and toolbar are slightly greyed out to match Windows File Explorer's Ribbon colour. Perfect if you use white window borders.
This style gives you maximum control over the look of your scrollbars with the fewest lines of code. This style matches any theme you throw at it thanks to having over 1000 different combinations. Thankfully, your flashy new scrollbars are un-intrusive thanks to the fact that they float over the page and are unlikely to interfere with page contents; and if floating is too much for you, feel free to enable autohiding. Compatible with most Gecko based browsers. Refresh the page after installing to see results.
about:addons – clean & compact Mostly inspired by Cleanest Addon Manager. Also Firefox: Awesome Addons Manager for the 'User Styles' category. The addon manager is in dire need of a facelift, but until Mozilla addresses this "issue", css styles will have to do..
Ancient clock image applies to the Firefox "about:home" page with Mozilla logo and snippet ads suppressed. Launcher buttons are revealed by hovering over the bottom of the image. The style also sets "about:blank" to same background image to minimize the potential "white flash" at start-up.
Check this short tutorial for list of extensions and screenshots. You can also report bugs and send me suggestions there, it's GitHub! Headerbar style for GNOME 3.14-: https://userstyles.org/styles/91417 GNOME styled menu List view: https://userstyles.org/styles/115022
This user style puts the refresh button at the left side of the URL bar, instead of the right side button that was introduced in FF 29.
Dark Scroll bar style for Firefox, similar to Google Chrome. Great for Dark Themes.