Search Results for tag "color"

Stylish - Custom themes for any website Compatible with Firefox 57+

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

Rated 4 out of 5 stars (1,254)
354,311 users

ColorZilla Compatible with Firefox 57+

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Rated 4 out of 5 stars (421)
191,797 users

Dark Background and Light Text Compatible with Firefox 57+

Makes every page (or only pages that you want) to have light text on dark background. Exact colors are customizable.

Rated 5 out of 5 stars (435)
50,674 users

Dark Mode (WebExtension) Compatible with Firefox 57+

A global dark theme for the web

Rated 4 out of 5 stars (203)
34,046 users

ColorfulTabs Compatible with Firefox 57+

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.

Rated 4 out of 5 stars (1,258)
103,041 users

Color Transform

Transform the colors of entire web pages or selected elements. Combine predefined themes with basic transforms. Save transforms for specific web domains.

Rated 4 out of 5 stars (25)
1,046 users

FabTabs Requires Restart

Make your tabs look fabulous!

Rated 4 out of 5 stars (155)
1,173 users

VivaldiFox Compatible with Firefox 57+ Featured

An add-on that allows colouring Firefox in a Vivaldi style fashion.

Rated 5 out of 5 stars (172)
2,628 users


A very simple extension for learning web page colors. Copy the RGB or Hex color code of any pixel displayed in your browser to the clipboard (in CSS/HTML format). Similar in function to Internet Explorer's color picker.

Rated 4 out of 5 stars (59)
58,685 users

App Button Clear

Make the orange Firefox button clear (transparent).

Rated 5 out of 5 stars (37)
205 users

App Button Color

Make the orange Firefox button any color you want, no restart required.

Rated 5 out of 5 stars (54)
353 users

NewScrollbars (aka NoiaScrollbars) [Fx/Tb 10-56] Requires Restart

The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".
[ not compatible with Firefox / Thunderbird 57+ ]

Rated 5 out of 5 stars (100)
11,852 users

TextMarker Go Compatible with Firefox 57+

Highlight the selected text.
1) Seven highlight colors
2) An arrow flag is added on the right side of the page
3) Hotkeys for highlight selected text and jump to highlighted text

Rated 4 out of 5 stars (52)
5,437 users

Color Picker Compatible with Firefox 57+

Search for the perfect color via an stylish color picker in a popup.

Not yet rated
245 users

Native Dark Compatible with Firefox 57+

Native Dark mainly replaces the default themes of Firefox, because the light theme was adaptive in the titlebar and not the tabs. It allows for the same adaptive titlebar as the default light theme but combines the aesthetic of the dark theme's tabs.

Rated 5 out of 5 stars (11)
204 users

Font Inspector (WebExtension) Compatible with Firefox 57+

Click on any element to get the font info in a page popup

Rated 2 out of 5 stars (5)
1,349 users

Super YouTube Theme Maker Compatible with Firefox 57+

Change YouTube™ colors to whatever you like. Make thousands of themes by yourself. Start to have fun!

Rated 3 out of 5 stars (6)
100 users

WCAG Contrast checker Compatible with Firefox 57+

Checks for compliance with the contrast levels, brightness and shine in the color combination of foreground and background of textual content based on the requirements of WCAG 1 and WCAG 2.

Rated 5 out of 5 stars (9)
2,949 users

HTML5 Video Tag Enhancer Compatible with Firefox 57+

Color Adjustment/EQ/Chorus/Delay/Reverb/Playback Rate/Loop/Always on top

You should see a icon in the address bar of your browser if there are any video tags on your page.

----doesn't work?--
please reload page

Rated 5 out of 5 stars (2)
150 users

Personas Rotator Compatible with Firefox 57+

Personas Rotator is a new companion for Personas Firefox add-on to change over 65000+ skins periodically on Firefox. What Will Your Browser Wear Now?

Rated 4 out of 5 stars (68)
2,989 users