To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
- Any Firefox
- Firefox 45.0
- Firefox 44.0
- Firefox 43.0
- Firefox 42.0
- Firefox 39.0
- Firefox 38.0
- Firefox 29.0
- Firefox 28.0
- Firefox 12.0
- Firefox 3.6
- Firefox 3.5
51 matching results
Search Results for tag "color"
Customize Bookmarks Title Colors and Text Styles
The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...
Column Reader No Restart
Web reader for wide screens and long documents. Read with pleasure in one of many attractive layouts. NEW: Integrated image viewer with pan and zoom. NEW: Choice of replacement font. NEW: Support for multi-process Firefox. For Firefox 35.0 and newer.
Add or switch or preview persona/light themes without restarting Firefox, using toolbar button icon or right-click context menus.
DarkenBackground No Restart
replace white or very bright background on webpages with slightly darker colors
The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
Enlight No Restart
Syntax highlight for raw source code.
Allows you to quickly and easily highlight all instances of a word or phrase within the current page. Simply select the text you want, right click and choose "highlight"...
ImgViewerPlus No Restart
ImgViewerPlus(Image Viewer Plus) adds zoom, rotate, flip and light switch capabilities with smooth animations to Firefox image viewer. It also makes background and light colors customizable.
Color Transform No Restart
Adapt page colors to your taste or need. Save your favorite color scheme for automatic coloration. Comes with 18 predefined themes and 24 basic transforms for hue, saturation, lightness and opacity. For Firefox 24.0 and newer.
Black background and white text No Restart
Makes black background and white text on every page
Remove colors and background images from the page by one click.
colorPicker No Restart
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.
Change the colors of web sites. With the move of some sliders, you change the foreground and background colors of a site.
Watch the video for a short introduction.
Colorific. No Restart
Colorize entire web pages manually or automatically. With 28 customizable themes that transform hue, saturation, lightness and opacity. For Firefox 28.0 and above. NEW: Copy themes and group color properties using drag-and-drop.
Click on any of the Colorify toolbar buttons to change the overall color of the page.
DevTools Tweaks extends the features of the built-in Firefox Devtools.
Adds New Rule, color-picker and Open URL to the inspector. Adds JSON parser to network view in Web Console, and adds hidden options to the options panel.
A tool to design frames directly in the web page. The integrated color picker supports also harmonic colors. Operating notes see the tooltips.
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.