Later versions of Firebug allow users to see live changes to the CSS. The HTML and CSS tools allow for the inspection and editing of HTML and CSS elements on a web page. Its net panel can monitor URLs that the browser requests, such as external CSS, JavaScript, and image files. Firebug also features the ability to examine HTTP headers and time stamps relative to when an HTTP request is made. It separates different types of objects, such as JavaScript files and images, and can determined which files are loaded from a browser's cache. Firebug also allows users to view the download time for individual files. The Firebug application contains multiple windows, splitting related features to a common window. The result of executing each command is displayed in the console, appearing as hyperlinks. The Firebug command line accepts commands written in JavaScript. All editors in Firebug support autocomplete. This version was to feature a new theme and would have focused on user experience.įirebug makes changes immediately and gives constant feedback to the user.
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.
Version history Version 2.0 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. As Firefox 57 no longer supports XUL add-ons, Firebug is no longer compatible. įirebug has been deprecated in favor of the integrated developer tools added to Firefox itself, whose functionality has been unified with those of Firebug. In addition to debugging web pages, Firebug was used for web security testing and web page performance analysis. It had 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 oversaw the open source development and extension of Firebug.
History įirebug was licensed under the BSD license and was initially written in January 2006 by Joe Hewitt, one of the original Firefox creators. Firebug is a discontinued free and open-source web browser extension for Mozilla Firefox that facilitated the live debugging, editing, and monitoring of any website's CSS, HTML, DOM, XHR, and JavaScript.
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