Firebug 1.2 Release Notes

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Revision as of 05:33, 14 April 2011 by Sebastianz (Talk | contribs) (Firebug 1.2 release notes)

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Features and changes

Enablement UI

  • Disable always: when the Firebug UI is not active on any page, the debugger is disabled (minimal overhead)
  • Instant on: when the Firebug UI is active, HTML, CSS, DOM views activate (minimal overhead)
  • Script panel user-activation: initially disabled or enabled always
  • Net panel user-activiation: initially disabled or enabled always
  • Console panel user-activation: initially disabled or enabled always. Controls ShowXMLHTTPRequest, consoleListener
  • Bug Icon gray unless some page has Script or Net panel activation
  • Multipanel enablement.
  • No Allowed-sites/Disable for Site: no longer needed.
  • Suspend/Resume Firebug in status bar context menu
  • List pages that enable Firebug on the Context menu tooltip. The UI for this feature is being refined; overhead tests have not been completed. We are interested in feedback on this UI change.

Javascript Debugging

  • Written/cleaned up eval support
  • Performance on eval better, easier to support.


  • Net timing more accurate
  • Only real network requests displayed.
  • Limit for number of requests (configurable in preferences).
  • Additional columns for: request method, status response + text
  • Cache tab has expiration time in Net panel
  • The Response tab has a hack to prevent extra requests to the server. Users must click on a button to force the request. The hack will not be needed in the next release of Firebug.


  • Redesigned to use events/attribute passing. (tests/console/joes-original/test.html mostly passes)

Command Line

  • Redesigned to avoid using evalInSandbox. (tests/console/commandLineObjects.html mostly passes, commandLineAPI functions, ok)



  • Secure updates via signed update.rdf with xpi updateHash values.