About this Collection
68 Add-ons in this Collection
FirePath is a Firebug extension that adds a development tool to edit, inspect and generate XPath 1.0 expressions, CSS 3 selectors and JQuery selectors (Sizzle selector engine).
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.
View HTTP headers of a page and while browsing.
JSON编辑器,It's a browser and editor for JSON document.You can get a beautiful view.
CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.
Finds HTML elements matching chosen CSS selector(s) or XPath expression
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/