Find Out What's Currently Planned For Firefox 13

Martin Brinkmann
Mar 15, 2012
Google Chrome

Even though Mozilla would prefer users not to look at Firefox versions anymore, it is something that I like to keep track of to see what's changing in the browser. It is easier to compare Firefox 12 to Firefox 13, than it is to compare Firefox released in February, with Firefox released in March. Why? Because you might end up comparing the same browser versions, and come up with zero changes or feature additions otherwise.

Firefox 13 is currently being prepared to be moved to the Aurora channel. If you remember the rapid release schedule, you know that it will stay in that channel for six weeks before it is moved to beta, where it stays another six weeks before it is released as a stable version. Firefox 13 therefor will be released in about 12 weeks from today on.

firefox 13.0

Firefox 13.0 will be one of the first versions of Firefox that's bringing a lot of new features to the table ever since Mozilla switched to the rapid release process. It is definitely something to look forward to, and here is why.

The new version will introduce silent background updates which are designed to cut the time the updating process is visible to the user. Instead of having to wait seconds and sometimes even minutes for the update to be downloaded and installed, Firefox users beginning with version 13 are handled in the background invisible to the user. This is similar to how Google is handling Google Chrome updates.

But this is not the only major change in this version of the browser. Firefox 13.0 will also see an update to the reset Firefox feature which lets you fix the browser automatically by creating a new profile and migrating data to it. You can read more about Firefox Reset in the linked article. The current plan is to finalize the feature in Firefox 14. Mozilla aims to release the new hang reporter with Firefox 13, which is used to "collect, analyze, and fix browser hangs".

You may also have heard that Firefox will ship with a new tab page and home tab. The new tab page mimics Opera's Speed Dial feature. It displays nine popular websites with thumbnails and their page title. Firefox users can disable the feature to keep the blank tab page instead. The new home tab page opens when about:home is loaded in the browser.

firefox new home tab page

Additional features inlcude incremental garbage collection which would improve browser performance, inline URL autocomplete, and the new tabs on demand feature for automatic session restores.

Firefox 13.0 may also get mandatory ASLR (Address Space Layout Randomization) on Windows for binary components, which improves the browser's defense against attacks targeting the browser's memory. Some third party extensions may stop working because of this and Mozilla will monitor the impact carefully on release.

You can download the Firefox 13.0 Aurora build in the next days from the official download site over at Mozilla.


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  1. 26Dolphins said on March 24, 2012 at 3:35 am

    Why do I get the feeling that it won’t be long before the only criterion for users to choose their browser will be what logo they prefer to have displayed?

  2. Guest said on March 17, 2012 at 10:09 pm

    I don’t like how the inline URL autocomplete works, it doesn’t exactly correspond to what shows up in the AwesomeBar.

    Set “browser.urlbar.autoFill” to “false” in order to disable the feature.

  3. gary said on March 15, 2012 at 8:06 pm

    I hope they let you display “Recent Bookmarks” on the newtab page. I find “Most Visited” to be totally useless.

  4. david b said on March 15, 2012 at 1:40 pm

    Well guess what mozilla.. people like versions because it is a good guide to a lot of info. ..and way to stop innovating and just start blatantly copying other browsers. ..lame.

  5. Dougle said on March 15, 2012 at 8:51 am

    Incremental GC may not make 13, it really depends on

  6. Midnight said on March 15, 2012 at 2:59 am

    With the Nightly build (14.0a1) I get daily updates!
    One click to Update and reboot and I’m good to go! :)

  7. David Macdonald Ajang said on March 15, 2012 at 2:26 am

    Of course Firefox users want to look at the version numbers. That’s how they know whether their browser is up to date or not, as well as tracking what has been changed/fixed/added by the developers.

  8. Nebulus said on March 15, 2012 at 1:58 am

    I hope they let you disable the silent update and allow the normal “on demand” update…

    1. gary said on March 15, 2012 at 8:05 pm


  9. Midnight said on March 15, 2012 at 1:14 am

    “Firefox 13 is currently being prepared to be moved to the Aurora channel.”

    Firefox 13 is already in the Aurora channel, as a2 and it’s fast, stable and up to standards.

    Firefox UX today became 14.0a1 Nightly and like the version 13, it’s again,… fast, stable and up to standards.

    All Add ons are compatible with both releases, meaning there are no issues to be concerned about!

    Firefox! The Browser of choice, for those in the know! :)

    1. Dougle said on March 15, 2012 at 8:50 am

      There’s actually a Nightly build and a separate UX build.

      1. Dougle said on March 16, 2012 at 6:21 am

        UX builds, both x86 and x64, are updated regularly –

      2. Midnight said on March 15, 2012 at 6:17 pm

        Not too sure about the UX version still being around, as when I got the daily update, it took me to the 14.0a1 Nightly site where I D/L’d the latest.

        Seems to work fine so far, apart from the Plug in Container constantly crashing!

        Have to figure out how to fix that!

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