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Firebug 1.6 is Released with Many Fixes and Improvements

November 30th, 2010 | General , Out-source

Firebug 1.6.0

The Firebug Working Group proudly announces the availability of Firebug 1.6.0!

We have implemented a lot of new features that are summarized on our wiki in section Firebug 1.6 release notes. Please go over the summary and let us know if you need any additional information.

We have been working hard, but a lot of things wouldn’t be possible without contributions from developers, translators and also designers. See our wiki that lists all our active contributors.

Stability of Firebug has been improved, some memory leaks caught and so, we can declare Firebug 1.6 as the best release ever.

We are focusing on quality and continuously extending our list of automated tests. We run these tests to verify every release and publishing all test results online. Any Firebug users can also run the automated test suite on local machines and upload the results so, we can collect information about stability from various environments.

Firebug 1.6.0 has been uploaded on addons.mozilla.org and your Firefox should ask you for update soon. According to our past experience some issues can sneak through all the alpha and beta releases so, we expect some minor updates in the next few weeks.

Firebug 1.6.0 is for Firefox 3.6 and we are currently working on Firebug 1.7 and focusing on compatibility with Firefox 4.0. It should be available early next year. See known issues with Firefox 4.0.

Beta testers using releases from getfirebug.com will be also automatically asked to update.

Overview of Firebug 1.6

Firebug 1.6 supports Firefox 3.6

Console and Command Line




  • Disabling break on next error
  • The stack panel now displays argument names and values + support for expanding/collapsing
  • Script Panel shows nicer message when it is inactive during page load
  • Improved presentation of the scope chain in the Script panel Watch side panel
  • Save and restore breakpoints across Firefox sessions
  • Script panel file list has auto scroll button and shows filtering text


  • Show the prototype, constructor, and __proto__ properties of objects
  • localStorage and sessionStorage now also displayed
  • Better search match highlighting


Toolbars and Menus


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