This pure JavaScript date picker controls is fully portable and requires nothing except a JS enabled browser. It is easily skinable and the default theme uses only one image file (a mask for the previous and next buttons), everything else is styled using CSS

Features

• Supports all modern browsers and IE8
• Support single day, multiple day, or day range selection
• Configurable number of months to be displayed at once
• Leverages moment.js for smart and easy date parsing
• Can be displayed on the page as an inline widget, or attached to one or more input fields as a popup control

Kalendae does not require jQuery, but does provide a jQuery plugin when jQuery is available. jQuery users may create a Kalendae widget or popup by calling $(selector).kalendae(options).

With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program. You can Zoom the page you are viewing and measure distances between any two points on the page. The built-in palette browser allows choosing colors from pre-defined color sets and saving the most used colors in custom palettes. DOM spying features allow getting various information about DOM elements quickly and easily.

Features

• Analyze DOM element colors
• Find out what CSS rules specify a given color
• Locate elements that correspond to a given color
• Save, bookmark and share the palettes
• Full Page Zoom
• Firebug support
• Ubuntu support

Website: http://www.colorzilla.com/firefox/

Download: http://data.colorzilla.com/downloads/ColorZilla_2.0.1.xpi

Additional Palettes: http://www.colorzilla.com/firefox/palettes.html