I use ColorZilla to find colors from any webpage I'm viewing, without having to take a screen shot. It saves time and is useful if you want to find an exact color or blend with the forum background...ect. Link Enjoy,
Web Developer 1.0.2 Can view the CSS, HTML and alot of other things about a webpage. You can even edit the CSS in real time to see the changes before you make the actual edits to your CSS. It does it to the screen, but you must make the final edits to your CSS for them to take effect.