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Featured Add-ons Rotation for July 2008

July 1st, 2008 by bhashem

I’ve previously described the process we use on AMO for rotating the featured add-ons. As we start a new month, we’ve rotated many of the add-on based on their performance. We examine how many additional active add-on users have been added to the Firefox add-ons user base (in absolute numbers) and the relative user retention performance — do users who downloaded the add-on continue to use it? Those with better overall performance stay on the list, the other slots on the list get rotated to uncover new, great add-ons. In this rotation we had 21 add-ons get rotated out and 23 come in. You can see the resulting list for July 2008.

7 Comments »

7 Responses to “Featured Add-ons Rotation for July 2008”

  1. on 02 Jul 2008 at 2:01 am   Alfred Kayser

    Note that statistics on usage of themes (and other extensions) is still not right on AMO, so if these are used for this rotation, the rotation is then also flawed…
    See https://bugzilla.mozilla.org/show_bug.cgi?id=291413

  2. on 02 Jul 2008 at 1:22 pm   bhashem

    @Alfred, that bug that you point to has to do with the default ordering and display of the recommended list – not the accuracy of the stats.

  3. on 04 Jul 2008 at 9:29 am   Jay

    basil, in a previous post you posted that the retention ratio ranged from 9.5% to 48.0%. if you can share, what was the average in this go around? thanks in advance!

  4. on 12 Jul 2008 at 6:31 pm   bhashem

    @Jay: Sorry for the delayed response on this, I must have missed it. The range this time around was 4.5% to 34.9%

  5. on 25 Jul 2008 at 4:58 am   S

    Basil, how do you calculate the retention rate?

  6. on 25 Jul 2008 at 7:53 am   bhashem

    @S: I’ve previously blogged about how the retention rate is calculated @ http://blog.mozilla.com/basil/2008/05/30/rotation-of-featured-add-ons-on-amo/. It’s only a proxy calculation, an approximation, I use active users divided by downloads for a selected period of time.

  7. on 29 Jul 2008 at 11:22 am   Jay

    Thanks Basil!