About this Collection
69 Add-ons in this Collection
Switch DOM Inspector to an over/under vertical layout instead of the usual side-by-side panel layout.
FireLESS allows Firebug to display the original LESS file name and line number of LESS-generated CSS styles.
It currently requires a patched version of LESS available at https://github.com/simonedeponti/less.js.
Provides searchable reference information and code examples for HTML and CSS
A simple add-on for extension testers, especially AMO editors and developers who plan to submit their add-ons to AMO.
Holmes is stand-alone diagnostic CSS stylesheet that can highlight potentially invalid, inaccassible or erroneous HTML(5) markup by adding one class.
Add-on to augment the Mozilla Add-on SDK documentation with examples that can be run right on the page
This add-on has been discontinued and no longer has any functionality.