Pixel and color friendly Firefox Addons

This 2 tools are of huge help when you need to validate colors and sizes in a pixel perfect application :

1. https://addons.mozilla.org/en-US/firefox/addon/measureit/
- you can see code behind
- you can see a cool 3D layered image of your application

2. https://addons.mozilla.org/en-us/firefox/addon/pixelzoomer/
- perfect for measuring sizes
- accurate color picker