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    Firefox 16 for devs

    This page is not complete.

    Firefox 16 shipped on October 9, 2012. This article lists key changes that are useful for not only Web developers to know about, but also Firefox and Gecko developers as well as add-on developers.

    Want to help document Firefox 16? See the list of bugs that need to be written about and pitch in!

    Changes for Web developers








    • The lspace and rspace attributes of <mo> now correctly default to thickmathspace.


    Developer tools

    • There's now a handy developer toolbar you can access by going to Tools > Web Developer > Developer Toolbar, or by pressing Ctrl-Shift-V (Cmd-Opt-V on Mac OS X). This toolbar offers a command line interface as well as buttons for quickly accessing useful tools. The graphical command line interface (GCLI) is easy to expand and additional commands are expected in the future. Type "help" to get a list of supported commands.
    • The Web Console now displays an error count so you can quickly see how much work you have ahead of you.
    • The Scratchpad now offers a list of recently opened files.

    Changes for Open Web App developers

    • Initial Open Web App support has been implemented in the desktop versions of Firefox (that is, on Windows, Mac OS X, and Linux).

    Changes for add-on and Mozilla developers

    Interface changes

    nsIPrivateDOMEvent has been merged into nsIDOMEvent. (bug 761613)

    New interfaces

    Removed interfaces

    The following interfaces have been removed.

    See also

    Document Tags and Contributors

    Contributors to this page: jezdez, groovecoder, fscholz, teoli
    Last updated by: groovecoder,