Pick Color with various kinds of color pickers. Multiple options to choose color in HTML format are available.
The Color Inspector 3D shows all colors of an image in a rotatable RGB-color cube.
You can switch color settings between custom and default by one click. Sometimes you may use non-white color settings for protecting you eyes, sometimes you may use the default color settings to surfing for a better presentation.
If you are browsing in a dark environment, then it is very bad for your eyes to read pages with white background. This plugin helps you by turning the webpage to a dark color scheme.
Mark/flag tabs via an unlimited amount of customizable colors. Quickly group and bookmark tabs based on color. Persistently label/color tabs by url/regex. Other optional features: relative tabs, highlight unread tabs, color favicon, and auto-flag.
Tints browser tabs with a color specific to the website loaded. This helps you identify tab contents based on a distinct visual cue.
A lightweight addon for selecting any color from web pages. It copies the Hex color code of any pixel that is displayed in your browser to clipboard. Just click the color wheel button near your address bar or press 'Ctrl+Shift+z'.
Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.
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.
This add-on renders the standalone image in Firefox with a background color of your choice, which means that you can render it on either a transparent background, a red one, or any color that you like the most.
This addon is a button that can be added to the tool bar. To add, right click on the toolbar and select customize. It will then allow you to place a button on the toolbar to run the tests. This is a tool that will allow web developers to analyze their webpages for problems with color. It will allow a simulation to see what a colorblind person would see and perform a series of tests on color contrast and difference.
A multi-color highlighter for marking text on web pages. Uses SQLite to keep a record of your highlights on your system, AND NOWHERE ELSE. Created because Yooper doesn't support Firefox 4.0+
BYM: Changes color combination ; left-click in the statusbar for changing its status (ON/OFF) or press Ctrl-Alt-B.
ER: Makes text reading easy; select the text, right-click, select the 'Easy Read' entry in the context menu or press Ctrl-Alt-Z