ColorfulTabs
The first addon you should be installing on a fresh Firefox install. A must have. The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color.
14,724 users
Tabliss - New Tab
A beautiful New Tab page with many customisable backgrounds and widgets that does not require any permissions.
72,977 users
1,457 users
Adaptive Tab Bar Color
Changes the color of Firefox tab bar to match the website theme.
2,126 users
43 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
967,102 users
7 users
9 users
10 users
3 users
4 users
Turn Off the Lights for Firefox
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.
42,998 users
nightTab
A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab.
3,955 users
2 users
Stylus
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
110,592 users
7,506 users
TST Colored Tabs
Colorize each tab in Tree Style Tab sidebar based on domain.
1,535 users
1 user
1 user
2 users
1 user
1 user
1 user
1 user
1 user