Update on Signed Add-ons proposal https://groups.google.com/forum/?_e...ic/mozilla.addons.user-experience/qIgLq28aTdI Current plans, roughly and AFAICT: All extensions must be signed and must be submitted to Mozilla for approval in order to work with Release builds. Non-AMO developers required to pay and sign an agreement in order to obtain self-signing certs from Mozilla. Unsigned extensions can only be used on Nightly, debug builds of Beta and Release, or the new Developer Edition. As someone who occasionally uses an older, no longer actively maintained extension and also a private extension, I'm concerned about the potential consequences of using the Developer Edition. Such as profile or other restrictions, undesirable for normal use features, reduced configuration options, etc. Is anyone familiar with the Developer Edition of Firefox ( https://www.mozilla.org/en-US/firefox/developer/ )?