Collector's Note additional firebug extensions can be found here: http://getfirebug.com/wiki/index.php/Firebug_Extensions
FirePHP enables you to log to your Firebug Console using a simple PHP method call.
Not using Firebug 1.9+ on Firefox 8+? See http://firephp.org/
CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.
Finds HTML elements matching chosen CSS selector(s) or XPath expression
Edit your css with FireBug and let cssUpdater update the corresponding property and value in your css source file. Pixel push with ease! (Please visit the homepage for more information.)
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
Drupal for Firebug extends the Firebug module to provide Drupal specific debugging and status messages. The 2.0 version doesn't work, until 2.1 is approved by mozilla, we recommend Downloading straight from the Project's Repository page.
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...
Firebug extension to help dojo developers.
Easy access to Dojo features: get a tree view of the dijit registry, inspect visual widgets, view and breakpoint connections and subscriptions.
Note: This addon does not work with dojo 1.8+ yet