Web Development Evolved - The Firebug you have known and loved
Web Development Evolved getfirebug.com
On November 14, with the launch of Firefox Quantum (AKA 57), support for old school extensions will stop in Firefox. That means Firebug will no longer work for many developers. However, the work continues in the great Firefox devtools. You can try Firefox devtools by updating your release browser or downloading Developer Edition. Read more here
Firebug is free and open source software distributed under the BSD License.
See more information about Firebug repository structure.
In order to build Firebug *.xpi package run following in your command line (you need Apache Ant)
$ cd firebug/extension $ ant
The *.xpi file should be located within
The extension directory directly contains Firebug extension files and so, you can run Firebug directly from it. This is the recommended way how to quickly test your code changes and provide a patch.
extensions/folder, create if it doesn't exist.
~/firebug/extension/). Windows users should retain the OS' slash direction, and everyone should remember to include a closing slash and remove any trailing spaces.
See detailed instructions about how to provide a patch to Firebug source.