The Firefox add-on "Firebug" which has been used for 12 years to web developers in Firefox terminated with Firefox Quantum

Planned to be released in November 2017Firefox 57"Is clearly the fact that it is the result of the next-generation web engine" Project Quantum "Released under the name "Firefox Quantum"It is supposed to be. There are various points to be changed, one of which is that support for the Firefox web developer add-on "Firebug" is terminated.

Saying Goodbye to Firebug ★ Mozilla Hacks - the Web developer blog
https://hacks.mozilla.org/2017/10/saying-goodbye-to-firebug/


Firebug, which appeared in 2005, is an add-on for web developers for Firefox that allows you to check, edit, and debug your code using a browser, and currently there are over 1 million patrons.

However, in June 2016, it is loaded from Firefox 10Integration with web developer toolsIt is revealed that it is being advanced, and in December 2016 it is decided to end development and maintenance. Since it does not correspond to Firefox 57 revised "Firefox Quantum" scheduled to be released in November 2017, it is finally decided to finish the 12-year history.

Since Firebug's functionality is integrated into web developer tools, it may be better to say that history has been handed over to Firefox itself.

In the official Firebug website, infographics looking back over the past 12 years and members who contributed to development have been introduced.

Firebug
https://getfirebug.com/