The Web Developer extension adds various web developer tools to the browser.
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Finds HTML elements matching chosen CSS selector(s) or XPath expression
Useful tools for the nightly tester.
Firebug extension to view which CSS rules are actually used.
Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser
Firecookie is part of Firebug since Firebug 1.10
Inline Code Finder is an add-on to Firebug, to be able to find HTML elements with any of the below issues:
* Inline style
Detailed description can be found athttp://www.robertnyman.com/inli...
Collections are groups of related add-ons that anyone can create and share.Explore Collections