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.
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Compatibility table:
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
Visit the Firebug website for documentation and screen shots: http://getfirebug.com
Ask questions on Firebug newsgroup: https://groups.google.com/forum/#!forum/firebug
Report an issue: https://github.com/firebug/firebug/issues
Please note that bug reports or feature requests in comments on this page won't be tracked. Use the issue tracker or Firebug newsgroup instead thanks!
Read more here
Follow Firebug news on Twitter
Compatibility table:
- Firefox 3.6 with Firebug 1.7.3
- Firefox 4.0 with Firebug 1.7.3
- Firefox 5.0 with Firebug 1.8.2 (and also Firebug 1.7.3)
- Firefox 6.0 with Firebug 1.8.2 (and also Firebug 1.9)
- Firefox 7.0 with Firebug 1.8.2 (and also Firebug 1.9)
- Firefox 8.0 with Firebug 1.8.3 (and also Firebug 1.9)
- Firefox 9.0 with Firebug 1.8.4 (and also Firebug 1.9)
- Firefox 10.0 with Firebug 1.9
- Firefox 11.0 with Firebug 1.9
- Firefox 12.0 with Firebug 1.9
- Firefox 13.0 with Firebug 1.10 (and also Firebug 1.9)
- Firefox 14.0 with Firebug 1.10
- Firefox 15.0 with Firebug 1.10
- Firefox 16.0 with Firebug 1.10
- Firefox 17.0 with Firebug 1.11 (and also Firebug 1.10)
- Firefox 18.0 with Firebug 1.11
- Firefox 19.0 with Firebug 1.11
- Firefox 20.0 with Firebug 1.11
- Firefox 21.0 with Firebug 1.11
- Firefox 22.0 with Firebug 1.11
- Firefox 23.0 with Firebug 1.12 (and also Firebug 1.11)
- Firefox 24.0 with Firebug 1.12
- Firefox 25.0 with Firebug 1.12
- Firefox 26.0 with Firebug 1.12
- Firefox 27.0 with Firebug 1.12
- Firefox 28.0 with Firebug 1.12
- Firefox 29.0 with Firebug 1.12
- Firefox 30.0 with Firebug 2.0 (and also Firebug 1.12)
- Firefox 31.0 with Firebug 2.0 (and also Firebug 1.12)
- Firefox 32.0 with Firebug 2.0 (and also Firebug 1.12)
- Firefox 33 - 46 with Firebug 2.0
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
Visit the Firebug website for documentation and screen shots: http://getfirebug.com
Ask questions on Firebug newsgroup: https://groups.google.com/forum/#!forum/firebug
Report an issue: https://github.com/firebug/firebug/issues
Please note that bug reports or feature requests in comments on this page won't be tracked. Use the issue tracker or Firebug newsgroup instead thanks!