The Firebug command line accepts commands written in JavaScript.

All editors in Firebug support autocomplete. Featuresįirebug makes changes immediately and gives constant feedback to the user. The next version will feature a new theme and will focus on user experience. On November 10, 2014, Firebug 3.0 was announced and an alpha was made available to the public.

It also adds the ability to create new HTML attributes for existing HTML elements. Moreover, users can inspect values returned from JavaScript functions. The debugging tool now allows users to inspect JavaScript expressions as they are evaluated. Additionally, users can search for page elements using CSS selectors in the search bar. įirebug 2.0 introduced many new features to the Firebug extension including JavaScript syntax highlighting, pretty print for minified JavaScript code, and a DOM Event Inspector to handle all event handlers on a web page.

In addition to debugging web pages, Firebug is a useful tool for web security testing and web page performance analysis. It has two major implementations: an extension for Mozilla Firefox and a bookmarklet implementation called Firebug Lite which can be used with Google Chrome. The Firebug Working Group oversees the open source development and extension of Firebug. įirebug is licensed under the BSD license and was initially written in January 2006 by Joe Hewitt, one of the original Firefox creators. Firebug 2.0.1 running in Firefox 30.0 under Windows 7 with the HTML panel active on the main Wikipedia page.Ģ.0.16 / March 30, 2016 6 years ago ( )įirebug is a free and open-source web browser extension for Mozilla Firefox that facilitates the live debugging, editing, and monitoring of any website's CSS, HTML, DOM, XHR, and JavaScript.

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