Firebug icon

Firebug icon


Business Software IT and Operations
Firebug was a FireFox extension (lite version released for Chrome) that made live debugging of website code possible. Firebug saw several versions released over the years before it was discontinued in... favor of FireFox Development Tools, which is new default debugging tool included in the latest FireFox build. This tool is based on Firebug's code. Read moreless

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Firebug Reviews

We have 1 review for Firebug. The average overall ratings is 4.0 / 5 stars.

Write a Review
grex avatar
My Opinion on Firebug
written by grex on 2018-04-02 08:05:01
Ease of Use
Customer Service
Value For Money

Overall Opinion: Firebug is the foundation that the current Firefox Development Tool is built upon for debugging code in Firefox. It was first conceived in 2006 by Joe Hewitt and quickly became the best way to monitor AJAX code in any modern browser. With the popularity of the extension, it was soon open sourced and developed into a more robust debugging tool that could handle language syntax and more types of code monitoring. Around 2010, the app debuted for Google Chrome as Firebug Lite, though the Chrome extension was never given much focus beyond its initial release. In fact, it hasn't been updated since 2011, which was only a year after it debuted on the Chrome Web Store. The Firebug devs announced the retirement of Firebug in 2017, after the most recent Firefox Quantum update. The new Firefox Development Tools that released with that browser is based on Firebug and therefore made the extension redundant. You can still download it for older versions of Firefox, but it is no longer being maintained or developed in favor of Firefox's built-in debugging tool. Firebug is an excellent example of how community-led extension development can work to improve a product overall. Every single feature that was available in Firebug is now available in Firefox Development Tools, with more being added as the service evolves. If you're still using an older version of Firefox that is still compatible with Firebug, you can download the extension from the main website. The extension source code and other files are available too if you'd like to examine the source to determine how the extension works.

Pros: Fully open source Available for FireFox and Chrome Allows live debugging of website code

Cons: Flash and Flex development required paid add-on

grex is using Firebug every other week recently.


  • Fully open source
  • Syntax highlighting for easy editing
  • DOM Event Inspector to handle events
You can always update Firebug to add more features!


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About This Article

This page was composed by and published by It was created at 2018-05-01 23:11:07 and last edited by at 2020-03-06 07:50:05. This page has been viewed 13851 times.

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