If you have an active extension listing on AMO you probably got a message from us already, explaining how we will automatically sign your add-on and provide it to your users via automatic updates. The automatic signing process will run this week, in batches, and we will notify you when your add-on is signed. Please take some time to test the signed version in the current release version of Firefox and either Developer Edition or Nightly (where Firefox already warns about unsigned extensions).
If you’re unfamiliar with extension signing, please read the original announcement for context.
Next week, we will activate two new features on AMO: signing of new add-on versions after they are reviewed, and add-on submission for developers who wish to have their add-ons signed but don’t want them listed on AMO. We will post another update once this happens. When this is done, all extension developers will be able to have their extensions signed, with enough time to update their users before signing becomes a requirement in release versions of Firefox.
New Developer Agreement
Since we will be signing add-ons that won’t be listed on AMO, we have updated the Add-on Distribution Developer Agreement to cover the new ways in which we will handle add-ons. This document hadn’t been touched for years, so we took our time and significantly updated its contents to reflect how we do things now. Hopefully it is also easier to read than its previous version.
Note that the new agreement will go into effect on June 1st. The version that is displayed on AMO when you submit a new add-on will be updated then, and all active developers on AMO will be notified about it.
If you want to stay up to date with changes related to extension signing, you can follow this blog or check in regularly to the wiki page, where I update the timeline information as it becomes clearer.
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