Firebug download Free Full version

The Download  Firebug

Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.

Publisher's Description

From Firebug:

Firebug is a Firefox extension that puts a wealth of Web development tools at your fingertips while you browse. You can edit, debug, profile and monitor CSS, HTML, XMLHttpRequests and JavaScript in any Web page in real time.