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Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while...

  • Mac OS X
    Firefox extension
  • Windows
    Firefox extension
  • Linux
    Firefox extension
  • Firefox

Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.

Firebug is always just a keystroke away, but it never gets in your way. You can open Firebug in a separate window, or as a bar at the bottom of your browser. Firebug also gives you fine-grained control over which websites you want to enable it for.

Firebug makes it simple to find HTML elements buried deep in the page. Once youve found what youre looking for, Firebug gives you a wealth of information, and lets you edit the HTML live. More Info »

Link to official Firebug site

Official Website
Firebug was added by Ola in Sep 2009 and the lastest update was made in Nov 2014. There is a history of activites on Firebug in our Change Log and Activity Log. It's possible to update the information on Firebug or report it as discontinued, duplicated or spam. If you want a nice widget to put on your website check these out.
Firebug Icon

Firebug alternatives for All Platforms×

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It's awesome that you want to help us remove incorrect alternatives. Feel free to report more applications below. But keep in mind that the only reason for an alternative not to be valid is if it doesn't share common functionality with Firebug. It might not be a good choice according to you but it’s still an alternative. Read more about our thoughts about alternatives here.

If you want to report an error on an application, for example if it's discontinued or the platforms is wrong, please go to the application and click the "Report This Application" button in the sidebar. You have to be registred to do this.