About this Collection
7 Add-ons in this Collection
Firebug by Joe Hewitt, Jan Odvarko, others
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
This addon is no longer being updated and won't work with new versions of Firefox. See the Colorzilla addon for a replacement: https://addons.mozilla.org/en-US/firefox/addon/colorzilla/.
Color tools for web development.
Toolbar contains a set of functions, which expands the abilities of webmasters and optimizers, when working in the interface of SAPE exchange.
"Styles Tuner" allows you to change fonts and colors for all sites in your browser.