Categories: developers

2013 in Add-on Reviews

As most of you know, we have a team of experienced add-on developers who volunteer their time and knowledge to code-review and test all add-ons and add-on updates that are listed on AMO. As we begin 2014, I want to take some time to look at what we accomplished last year.


  • Though introduced in 2012, 2013 was the year we were able to really gauge the usefulness of the reviewer incentives program. Thanks to this program, volunteer reviews are up from 48% in 2012 to 64% in 2013!
  • 17 new reviewers were added to the team, 4 of whom are still be active.
  • We were able to meet again with many of our top reviewers in Brussels, for the European leg of the Mozilla Summit.

Review numbers

Here’s how we have done in the past 4 years of review work.

Nominations Updates Preliminary Super review Info request Total
2010 4602 (35%) 6874 (52%) 0 (0%) 275 (2%) 1568 (12%) 13,319
2011 5037 (24%) 9045 (43%) 5452 (26%) 484 (2%) 848 (4%) 20,866
2012 4056 (22%) 7819 (42%) 5673 (30%) 440 (2%) 765 (4%) 18,753
2013 3737 (21%) 7111 (39%) 6266 (35%) 287 (2%) 646 (4%) 18,047

As you can see, the review volume and distribution was very similar to last year’s. I like that there’s a small downward trend in super reviews and information requests, since they tend to slow down reviewing an add-on significantly.

(The inflated numbers in 2011 were due to some major changes that happened in the review process around that time, which required lots of re-submissions.)

Top Reviewers

And here are our top volunteer reviewers for the year:

Review count Name
4360 Teo (Leszek Życzkowski)
1763 Diego Casorran
1435 Andreas Wagner
1201 Henry Perez
836 Nils Maier
385 Aris
278 Axel Grude
190 Michael Balazs
179 Baris Derin
170 rctgamer3

I should point out that Andreas recently joined us as a contractor helping with admin reviews, so his volunteer review count would be slightly lower if we wanted to be perfectly accurate.

Thank you, Review Team!

We can’t thank you enough for all the hard work that you do. We’re always thinking of ways we can make it up to you, and there are still many ideas left unimplemented that will better tell the world how awesome you are and how much you have contributed to the Mozilla project.

This year I hope we have the opportunity to meet again, or for the first time, and that you feel happy and properly rewarded for the time and energy you dedicate to helping us. Thanks again from the Add-ons Team and the Mozilla project.

3 comments on “2013 in Add-on Reviews”

  1. Ken Saunders wrote on

    Sincere thanks to all of you for your time and work.

    You’re not simply reviewing for developers, you’re doing it for users.

    Well, gee, you knew that and that’s the whole point.

    It’s late here

  2. Bertrand Neveux wrote on

    Indeed these are truly impressive numbers… year after year!
    A huge thanks to all of you for your excellent support, it’s thanks to you that AMO continues to be such a strong proposition for developers and for users.
    Merci beaucoup!!

  3. goofy wrote on

    Thank you so much all reviewers, you are performing a very good job of crucial importance for the benefit of all.