VisualColorEditor is a project mainly written in JavaScript, based on the MIT license.
Visual CSS color editor for Firefox 5 and above
This is an add-on for Firefox 5 and above.
It allows to open local files and change color definitions (as: #afafaf) in a visual way. It allows to save changes on local file system.
Visual Color Editor is based on dojotoolkit v 1.6.1 (http://www.dojotoolkit.org).