Firebug – Best web development helper for Firefox

This article along with all titles and tags are the original content of AppNee. All rights reserved. To repost or reproduce, you must add an explicit footnote along with the URL to this article!
Any manual or automated whole-website collecting/crawling behaviors are strictly prohibited.
Any resources shared on AppNee are limited to personal study and research only, any form of commercial behaviors are strictly prohibited. Otherwise, you may receive a variety of copyright complaints and have to deal with them by yourself.
Before using (especially downloading) any resources shared by AppNee, please first go to read our F.A.Q. page more or less. Otherwise, please bear all the consequences by yourself.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Firebug is a free and open-source, complete and powerful Web development auxiliary plug-in for Mozilla’s Firefox. The same as Chris Pederick’s Web Developer, it added plentiful website designing, developing and testing tools at our fingertips. Web developers can use it to debug, edit or even delete HTML, CSS, DOM, and JavaScript code of any website.

Firebug allows to check and edit HTML tag, view and modify various CSS containers (box model) in a web page; check web page’s response time (i.e.: download time) according to different file types; debug and execute JavaScript in real time; monitor network status; and so on. In fact, it has become the right-hand man of JavaScript, CSS, HTML and Ajax programming for a long time. Like an exquisite Swiss Army Knife, Firebug enables users to analyze all internal details of web pages from different perspectives, brings great convenience to Web developers.

// Key Features //

  • Always at your service
  • Inspect and edit HTML
  • Tweak CSS to perfection
  • Visualize CSS metrics
  • Monitor network activity
  • Debug and profile JavaScript
  • Quickly find errors
  • Explore the DOM
  • Execute JavaScript on the fly
  • Logging for JavaScript
  • ….

// Official Demo Video //

// Download URLs //

(Homepage)

If some download link is missing, and you do need it, just please send an email (along with post link and missing link) to remind us to reupload the missing file for you. And, give us some time to respond.
If there is a password for an archive, it should be "appnee.com".
Most of the reserved downloads (including the 32-bit version) can be requested to reupload via email.