Add-ons Update – Week of 2016/03/09

I post these updates every 3 weeks to inform add-on developers about the status of the review queues, add-on compatibility, and other happenings in the add-ons world.

The Review Queues

In the past 3 weeks, 1065 add-ons were reviewed:

  • 1007 (95%) were reviewed in less than 5 days.
  • 26 (2%) were reviewed between 5 and 10 days.
  • 32 (3%) were reviewed after more than 10 days.

There are 102 listed add-ons awaiting review.

You can read about the recent improvements in the review queues here.

If you’re an add-on developer and are looking for contribution opportunities, please consider joining us. Add-on reviewers get invited to Mozilla events and earn cool gear with their work. Visit our wiki page for more information.

Firefox Accounts

Firefox Accounts is now live on AMO. Next time you log in, you’ll be prompted to migrate your account. If you have any problems with this process, please post in the forum thread.

Firefox 45 Compatibility

This compatibility blog post is up. The bulk compatibility validation was run last week.

Firefox 46 Compatibility

The compatibility blog post is up. We expect to run the bulk validation in a couple of weeks.

As always, we recommend that you test your add-ons on Beta and Firefox Developer Edition to make sure that they continue to work correctly. End users can install the Add-on Compatibility Reporter to identify and report any add-ons that aren’t working anymore.

Extension Signing

The wiki page on Extension Signing has information about the timeline, as well as responses to some frequently asked questions. The current plan is to remove the signing override preference in Firefox 46 (updated from the previous deadline of Firefox 44).


Electrolysis, also known as e10s, is the next major compatibility change coming to Firefox. Firefox will run on multiple processes now, running content code in a different process than browser code.

This is the time to test your add-ons and make sure they continue working in Firefox. We’re holding regular office hours to help you work on your add-ons, so please drop in on Tuesdays and chat with us!


We’re working on the new WebExtensions API, and we recommend that you start looking into it for your add-ons. You can track progress of its development in

2 responses

  1. Pavan wrote on :

    Hi, I couldn’t post on because comments are closed – however you said “Let me know in the comments if there’s anything missing or incorrect on these lists. If your add-on breaks on Firefox 45, I’d like to know.”

    Welp. My add-on has broken in Firefox. It works fine when launched using `firefox -app /path/to/app.ini` or with xulrunner. But when launching from the FF addon, I can’t drag elements from my left sidebar onto my canvas element anymore.

    1. Jorge Villalobos wrote on :

      Sorry, it looks like the forum is set to close comments after 30 days. I guess it’s a recent change I wasn’t aware of.

      As for the issue you’re seeing, I think it’s best to continue the discussion you began in the forum. It would also be useful to create a minimal testcase that demonstrates the problem.